FRICKÉ, Martin. Classification, facets, and metaproperties. In: Journal of information architecture [online]. Fall 2010, 2(2), 43-65 [cit. 2013-05-10]. ISSN 1903-7260 (Online).
Dostupné volně z webu časopisu: http://journalofia.org/volume2/issue2/04-fricke/ nebo http://journalofia.org/volume2/issue2/04-fricke/jofia-0202-04-fricke.pdf.