http://www.cs.vu.nl/~wva/pub/RC33.pdf
http://www.qualitative-research.net/fqs-texte/2-00/2-00mayring-e.htm
http://www.temple.edu/mmc/reliability/
http://www.asc.upenn.edu/usr/krippendorff/
http://www.scienceplus.nl/scienceplus/main/softwareshop/agree.jsp
http://www.let.rug.nl/~ensink/syllta.htm
http://www.societyfortextanddiscourse.org/resources/journals.html
http://www.cch.kcl.ac.uk/legacy/teaching/av1000/textanalysis/method.html#Kinds
http://www.concordancesoftware.co.uk/