Wysocki, Pawel (2015). FUNCTIONING AND LEGAL REGULATIONS OF PERPETUAL USUFRUCT RIGHT IN POLAND IN RELATION TO SIMILAR RIGHTS IN OTHER COUNTRIES OF THE EUROPEAN UNION.. SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 15th International Multidisciplinary Scientific GeoConference SGEM2015, INFORMATICS, GEOINFORMATICS AND REMOTE SENSING, 253-260. https://doi.org/10.5593/sgem2015/b22/s9.031