Berend T. Iván: Underdevelopment in Europe in the context of East-West relations in the 19th century - Studia historica Academiae Scientiarum Hungaricae 158. (Budapest, 1980)
studiaJ"Ji storica Academiae Scientiarum Hungaricae I. T. BEREND AND GY. RÁNKI UNDERDEVELOPMENT IN EUROPE IN THE CONTEXT OF EAST-WEST RELATIONS IN THE 19TH CENTURY