@MISC\{IMM2011-06010,
    author       = "F. {\AA}. Nielsen",
    title        = "AFINN",
    year         = "2011",
    month        = "mar",
    keywords     = "word list, sentiment analysis, opinion mining, text mining",
    publisher    = "Informatics and Mathematical Modelling, Technical University of Denmark",
    address      = "Richard Petersens Plads, Building 321, {DK-}2800 Kgs. Lyngby",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/6010-full.html",
    abstract     = "{AFINN} is a list of English words rated for valence with an integer
between minus five (negative) and plus five (positive). The words have
been manually labeled by Finn {\AA}rup Nielsen in 2009-2011. The file
is tab-separated. There are two versions:

 {AFINN-}111: Newest version with 2477 words and phrases.

 {AFINN-}96: 1468 unique words and phrases on 1480 lines. Note that there
are 1480 lines, as some words are listed twice. The word list in not
entirely in alphabetic ordering.  

An evaluation of the word list is available in:

Finn {\AA}rup Nielsen
 {''A} new {ANEW}: Evaluation of a word list for sentiment analysis in microblogs{'',} 
Proceedings of the ESWC2011 Workshop on 'Making Sense of Microposts':
Big things come in small packages 718 in {CEUR} Workshop Proceedings : 93-98. 2011 May. 
http://arxiv.org/abs/1103.2903

If you are a scientist I hope you would reference the above paper if you use it in your paper. The list was also used in: 

Lars Kai Hansen, Adam Arvidsson, Finn {\AA}rup Nielsen, Elanor Colleoni,
Michael Etter, {''}Good Friends, Bad News - Affect and Virality in
Twitter{'',} The 2011 International Workshop on Social Computing,
Network, and Services (SocialComNet 2011).


This database of words is copyright protected and distributed under
 {''}Open Database License (ODbL) v1.{0''} 
http://www.opendatacommons.org/licenses/odbl/1.0/ or a similar
copyleft license."
}