Lower ordovician graptolites of Bohemia - Bouček, Bedřich, 1904-1975 (Prague : Academia, 1973)
Keywords: biostratigrafie; ordovik; paleontologie; paleozoologie; biostratigraphy; Ordovician; paleontology; zoopaleontology; Barrandien (Česko); Barrandian (Czechia); monografie; monographs