concomitantly, feider supervised other ph.d. theses of several zoologists working at other romanian universities or at some remote biology research centers. he also never lost contact with the high-school education in romania, and was invited almost every year to preside over baccalaureate committees in the largest cities of the province of moldova, romania. in fact, the textbooks of zoology for high schools in romania all had his magisterial book “the vertebrate zoology” as reference.