The basis of this collection is the list of articles on catalog cards, prepared by the professor emeritus at the Department of Ethnology and Cultural Anthropology of the Faculty of Arts of the University of Ljubljana, Janez Bogataj, PhD. In his foreword to this collection, he wrote, among other things, the following:
The core of the material for the annual bibliographies was obtained by examining cards at the National and University Library. The undersigned was looking for publications not only under the ethnological (and ethnographic) UDC class 39, as many publications 'strayed' also into the historical, geographical, sociological, and other classes. The next step was to source out publications at ethnological institutions, such as the Department of Ethnology, the Slovenian Ethnographic Museum and ISN ZRC SAZU. He gathered a lot of material also from staying up to date with newer publications and writing them down on library cards. Working this way proved to be very advantageous. The Slovenian version of the whole text of Janez Bogataj, PhD on Slovenian ethnological bibliography is available
here.