diff --git a/resources/references.bib b/resources/references.bib
index 3690b18a23a023d6ba267f5f8d6029e9f7a1fab1..a77ab03eb8f387f80512df762e6dbad1544b99ee 100644
--- a/resources/references.bib
+++ b/resources/references.bib
@@ -1,6 +1,6 @@
 @online{BtcFAQ,
     title = "Bitcoin {FAQ}",
-    date = "2017-12-09",
+    year = "2017-12-09",
     url = "https://bitcoin.org/en/faq",
 }
 
@@ -20,14 +20,15 @@
     title = "Bitcoin: A Peer-to-Peer Electronic Cash System",
     url = "https://bitcoin.org/bitcoin.pdf",
     author = "Nakamoto, Satoshi",
+    year = "2008",
     date = "2008-10-31",
 }
 
 @online{BtcCore,
     title = "Bitcoin Core",
     url = "https://github.com/bitcoin/bitcoin",
-    author = "The Bitcoin Core developers",
-    date = "2017-12-09",
+    author = "{The Bitcoin Core developers}",
+    year = "2017-12-09",
 }
 
 @article{SHAttered,
@@ -35,6 +36,7 @@
     url = "https://shattered.io",
     author = "Marc Stevens and Elie Bursztein and Pierre Karpman and Ange Albertini and Yarik Markov",
     date = "2017-02-23",
+    year = "2017",
 }
 
 @online{ReutersMining,
@@ -42,12 +44,14 @@
     author = "Jemima Kelly",
     url = "https://www.reuters.com/article/us-markets-bitcoin-mining/bitcoin-miners-face-fight-for-survival-as-new-supply-halves-idUSKCN0ZO2CW",
     date = "2016-07-08",
+    year = "2016",
     organization = "Thomson Reuters",
 }
 
 @online{FairCostPoW,
     title = "The Fair Cost of Bitcoin Proof of Work",
     date = "2016-06-27",
+    year = "2016",
     author = "Tomaso Aste",
     institute = "University College London",
     url = "https://ssrn.com/abstract=2801048",
@@ -56,6 +60,7 @@
 @online{AntminerS9,
     title = "Antminer {S9}",
     date = "2017-11-25",
+    year = "2017-11-25",
     url = "https://www.antminereurope.com/antminer-s9/",
 }
 
@@ -63,12 +68,14 @@
     title = "Bitcoin Stats",
     url = "https://blockchain.info/stats",
     date = "2017-12-14",
+    year = "2017-12-14",
 }
 
 @online{BitcoinBlockHalf,
     title = "Bitcoin Block Reward Halving Countdown",
     url = "http://www.bitcoinblockhalf.com/",
     date = "2017-12-14",
+    year = "2017-12-14",
 }
 
 @article{MiningEnergyFootprint,
@@ -76,6 +83,7 @@
     author = "Karl J. O’Dwyer and David Malone",
     institute = "Hamilton Institute, National University of Ireland Maynooth",
     date = "2014-06-26",
+    year = "2014",
     url = "http://karlodwyer.com/publications/pdf/bitcoin_KJOD_2014.pdf",
 }
 
@@ -83,13 +91,13 @@
     title = "{Zeitreihen} zur {Entwicklung} der erneuerbaren {Energien} in {Deutschland} 1990 - 2016",
     url = "http://www.erneuerbare-energien.de/EE/Redaktion/DE/Downloads/zeitreihen-zur-entwicklung-der-erneuerbaren-energien-in-deutschland-1990-2016.pdf",
     date = "2017-08-01",
+    year = "2017",
     language = "German"
 }
 
 @article {USDataCenterEnergyUsage,
 	title = "{United} {States} Data Center Energy Usage Report",
 	year = "2016",
-	month = "06",
 	author = "Arman Shehabi and Sarah Josephine Smith and Dale A. Sartor and Richard E. Brown and Magnus Herrlin and Jonathan G. Koomey and Eric R. Masanet and Horner, Nathaniel and In{\^e}s Lima Azevedo and Lintner, William",
     url = "https://eta.lbl.gov/publications/united-states-data-center-energy",
 }
@@ -98,6 +106,7 @@
     title = "Google, Biggest Corporate Buyer of Clean Power, Is Buying More",
     author = "Brian Eckhouse",
     date = "2017-11-30",
+    year = "2017-11-30",
     url = "https://www.bloomberg.com/news/articles/2017-11-30/google-biggest-corporate-buyer-of-clean-power-is-buying-more",
     organization = "Bloomberg New Energy Finance",
 }
@@ -106,7 +115,6 @@
     author = "Liu, Jie and Goraczko, Michel and James, Sean and Belady, Christian and Lu, Jiakang and Whitehouse, Kamin",
     title = "The Data Furnace: Heating Up with Cloud Computing",
     year = "2011",
-    month = "06",
     url = "https://www.microsoft.com/en-us/research/publication/the-data-furnace-heating-up-with-cloud-computing/",
     publisher = "USENIX",
     notes = "3rd USENIX Workshop on Hot Topics in Cloud Computing",
@@ -115,18 +123,21 @@
 @online{Primecoin,
     title = "About {Primecoin}",
     date = "2017-11-25",
+    year = "2017-11-25",
     url = "http://primecoin.io/about.php",
 }
 
 @online{SolarCoinFAQ,
     title = "{SolarCoin} {FAQ}",
     date = "2017-12-09",
+    year = "2017-12-09",
     url = "https://solarcoin.org/en/frequently-asked-questions",
 }
 
 @online{VitalikPoS,
     title = "Slasher Ghost, and Other Developments in Proof of Stake",
     date = "2014-10-03",
+    year = "2014-10-03",
     url = "https://blog.ethereum.org/2014/10/03/slasher-ghost-developments-proof-stake/",
     author = "Vitalik Buterin",
 }
@@ -134,12 +145,14 @@
 @online{BitsharesDPoS,
     title = "Delegated Proof-of-Stake Consensus",
     date = "2017-12-09",
+    year = "2017-12-09",
     url = "https://bitshares.org/technology/delegated-proof-of-stake-consensus/",
 }
 
 @article{SlimcoinWhitepaper,
     title = "Slimcoin Whitepaper",
     date = "2014-05-17",
+    year = "2014",
     url = "www.slimcoin.club/whitepaper.pdf",
     author = "P4Titan",
 }
@@ -147,23 +160,24 @@
 @online{SlimcoinPoB,
     title = "What is Proof of Burn (ELI5)?",
     date = "2017-12-09",
+    year = "2017-12-09",
     url = "http://slimco.in/proof-of-burn-eli5/",
 }
 
 @inproceedings{PoLWhitepaper,
- author = "Milutinovic, Mitar and He, Warren and Wu, Howard and Kanwal, Maxinder",
- title = "Proof of Luck: An Efficient Blockchain Consensus Protocol",
- booktitle = "Proceedings of the 1st Workshop on System Software for Trusted Execution",
- series = "SysTEX '16",
- year = "2016",
- isbn = "978-1-4503-4670-2",
- location = "Trento, Italy",
- pages = "2:1--2:6",
- articleno = "2",
- numpages = "6",
- url = "http://doi.acm.org/10.1145/3007788.3007790",
- doi = "10.1145/3007788.3007790",
- publisher = "ACM",
+    author = "Milutinovic, Mitar and He, Warren and Wu, Howard and Kanwal, Maxinder",
+    title = "Proof of Luck: An Efficient Blockchain Consensus Protocol",
+    booktitle = "Proceedings of the 1st Workshop on System Software for Trusted Execution",
+    series = "SysTEX '16",
+    year = "2016",
+    isbn = "978-1-4503-4670-2",
+    location = "Trento, Italy",
+    pages = "2:1--2:6",
+    articleno = "2",
+    numpages = "6",
+    url = "http://doi.acm.org/10.1145/3007788.3007790",
+    doi = "10.1145/3007788.3007790",
+    publisher = "ACM",
 }
 
 @online{WA12GWH,
@@ -193,24 +207,28 @@
 @online{DigiconomistEU,
     title = "Bitcoin Energy Consumption Index",
     date = "2017-12-12",
+    year = "2017-12-12",
     url = "https://digiconomist.net/bitcoin-energy-consumption",
 }
 
 @online{DigiconomistETH,
     title = "Ethereum Energy Consumption Index",
     date = "2017-12-12",
+    year = "2017-12-12",
     url = "https://digiconomist.net/ethereum-energy-consumption",
 }
 
 @online{EtherscanHashRate,
     title = "Ethereum Network HashRate Chart",
     date = "2017-12-14",
+    year = "2017-12-14",
     url = "https://etherscan.io/chart/hashrate",
 }
 
 @online{HR1070,
     title = "GeForce {GTX} 1070 Ethereum Mining",
     date = "2017-06-14",
+    year = "2017",
     author = "Nathan Kirsch",
     url = "http://www.legitreviews.com/geforce-gtx-1070-ethereum-mining-small-tweaks-great-hashrate-low-power_195451",
 }
@@ -218,24 +236,28 @@
 @online{BitInfoChartsBTC,
     title = "Bitcoin ({BTC}) price stats and information",
     date = "2017-12-14",
+    year = "2017-12-14",
     url = "https://bitinfocharts.com/bitcoin/",
 }
 
 @online{BitInfoChartsETH,
     title = "Ethereum ({ETH}) price stats and information",
     date = "2017-12-14",
+    year = "2017-12-14",
     url = "https://bitinfocharts.com/ethereum/",
 }
 
 @online{FAU,
     title = "4CDR: {FAU} Vektor Logos und Siegel",
     date = "2017-12-13",
+    year = "2017",
     url = "http://www.4cdr.com/fau-vektor-logos-und-siegel-druckfahig-cmyk/",
 }
 
 @online{bitcoinwiki_difficulty,
     title = "Bitcoin Wiki: Difficulty",
     date = "2018-01-18",
+    year = "2018",
     url = "https://en.bitcoin.it/wiki/Difficulty",
 }
 
@@ -243,6 +265,7 @@
     title = "Casper the Friendly Finality Gadget: Basic Structure",
     author = "Vitalik Buterin",
     date = "2017-08-20",
+    year = "2017",
     organization = "Ethereum Foundation",
     url = "https://github.com/ethereum/research/",
 }
@@ -251,6 +274,7 @@
     title = "Understanding Serenity, Part 2: Casper",
     author = "Vitalik Buterin",
     date = "2015-12-28",
+    year = "2015-12-28",
     url = "https://blog.ethereum.org/2015/12/28/understanding-serenity-part-2-casper/",
 }
 
@@ -258,6 +282,7 @@
     title = "A Proof of Stake Design Philosophy",
     author = "Vitalik Buterin",
     date = "2016-12-30",
+    year = "2016-12-30",
     url = "https://medium.com/@VitalikButerin/a-proof-of-stake-design-philosophy-506585978d51",
 }
 
@@ -265,6 +290,7 @@
     title = "{EFF} photograph of {NSA's} {Utah} Data Center",
     author = "Parker Higgins",
     date = "2014-06-27",
+    year = "2014",
     url = "https://en.wikipedia.org/wiki/File:EFF_photograph_of_NSA%27s_Utah_Data_Center.jpg",
 }
 
@@ -272,13 +298,13 @@
     title = "{NSA} {Bluffdale} {Center} won't gobble up {Utah's} power supply",
     author = "Steven Oberbeck",
     date = "2013-06-30",
+    year = "2013",
     url = "http://archive.sltrib.com/story.php?ref=/sltrib/news/56493868-78/power-center-electricity-utah.html.csp"
 }
 
 @article{BDEW,
     title = "Blockchain in der {Energiewirtschaft}",
     year = "2017",
-    month = "10",
     organization = "{BDEW} {Bundesverband} der {Energie- und Wasserwirtschaft} e.V.",
     url = "https://www.bdew.de/internet.nsf/id/C0B989FDF653D276C12581C2004B5429/$file/BDEW_Blockchain_Energiewirtschaft_10_2017.pdf",
     language = "German",