Katičić, Natko Keywords: Yugoslavia | Family law | Private international law | Law of succession | Mots clefs: Yougoslavie | Droit de la famille | Droit international privé | Droit des successions | ABSTRACT Natko Katicic writes in the introduction to his course that starting from abstraction for achieving the substance or studying the substance for subjecting the substance to a general system is a reverse operation, but which leads to the same study and same recognition. The author studies in this course the Private Internation…