Social-economic researches on the history of East-Central Europe / edited by E. Pamlényi. — Budapest : Akadémiai Kiadó, 1970. — 231 с. — (Studia historica Academiae Scientiarum Hungaricae ; 62) - Pamlényi, E. (Studia historica Academiae Scientiarum Hungaricae, 1970)