C 274.698
Some new and lesser-known Ordovician localites in the western part of the Prague Basin. -- Plzeň : Západočeské muzeum, 1990. -- (Folia Musei Rerum Naturalium Bohemiae Occidentalis.; 31) (Folia Musei Rerum Naturalium Bohemiae Occidentalis. Geologica, ; 31). -- ISBN : 80-85125-28-5.
Kraft, Jaroslav, 1940-2007