Dee ihe ga-eso paragraf a - A tọhapụrụ ya n'ụlọ mkpọrọ n'afọ 1960 dị ka akụkụ nke mgbaghara. Ya na nwunye ya kwagara United Kingdom na-eso mbuso agha Warsaw Pact nke Czechoslovakia na 1968, nke meriri Prague Spring. Krejci ghọrọ prọfesọ mmụta mmekọrịta ọha na eze na Mahadum Lancaster. Ọ kụziri na ngalaba mahadum nke French Studies, German Studies na Religious Studies site na 1969 ruo 1983. Ọtụtụ n'ime nyocha ya lekwasịrị anya n'akụkọ ihe mere eme na nhazi nke mmepeanya site na usoro macrosociological. Ọ laghachiri Czechoslovakia na Czech Republic mgbe ọchịchị Kọmunist dasịrị
na-akụzi na Mahadum Charles na Prague na Mahadum Palacký, Olomouc, yana Diplomatic Academy nke Vienna.