C 216.235
Erosion and clastic dikes in coal seams of the Central Bohemian basins and their significance for the determination of plant substance coalification / Jiří Pešek ; Translated [z češ. do angl.] by J. Košáková. -- Plzeň : Západočeské muzeum, 1978 (Stráž 1). -- (Folia Musei Rerum Naturalium Bohemiae Occidentalis. Geologica ; Tom. 12).