[INDOLOGY] Help with abbreviation

[Kenneth Gregory Zysk]

I should be most grateful if someone could inform me what the abbreviation BKŚS stands for in Willem Bollee's article "Folklore on the foot in pre-modern India" (Indologica Taurinensia, 34 2008). The version of the article that I have does not list the abbreviations.
Many thanks,
Ken

Kenneth Zysk, PhD, DPhil
Head of Indology
Department of Cross-Cultural and Regional Studies
University of Copenhagen
Karen Blixens Vej 4, Bygn. 10, 
DK-2300 Copenhagen S    Denmark
Ph:  +45 3532 8951			Email: zysk at hum.ku.dk