Namurian-Westphalian boundary in the North-Western part of the Intra-Sudetic Trough.
Foreign title:
Problem Granicy Namur-Westfal w Polnocno-Zachodniej Czesci Niecki Srodsudeckiej.
Reference:
Gгrecka,T. (1968)
Namurian-Westphalian boundary in the North-Western part of the Intra-Sudetic Trough. [ Problem Granicy Namur-Westfal w Polnocno-Zachodniej Czesci Niecki Srodsudeckiej. ] Kwartalnik Geologiczny (Instytut Geologiczy)
Vol. 12 # 1 P. 51- 64