Lederer Emma: Feudalism as a structure and form of society - Studia historica Academiae Scientiarum Hungaricae 68. (Budapest, 1970)
studiaJJistorica Academiae Scientiarum Hungaricae í И,'. II'" Е. LEDERER FEUDALISM AS А STRUCTURE AND FORM OF SOCIETY ........................ . -■ ---------------——Ti