Petrography of Middle-Jurassic carbonate concretions from the Kardan valley (northern slopes of the Caucasus): preliminary results

by Bazarnik, J., Czerny, J., Gaweł, A., Sala, D.
Source: 1. Mineralia slovaca 1. 0369-2086 1. Roč. 39, č. 2 (2007)
2. [Príl.] Geovestník 2. 0369-2086 2. Č. 2 (2007), s. 16