Selection out of more than 400 studies composed by 

František Josef Prokop

(Czechoslovkia, 18.7.1901 - 21.9.1973)

More information about him can be found at Wikipedia and


(All his studies, more exact dates, possible corrections or cooks and exact details about sources can be found in the

Harold van der Heijden database V (31-12-2015) a collection with over 85.000 studies)