The Zebrówka Basin is a hydrographic peculiarity of the borderland between the Częstochowa Upland and the Nida Trough in view of its strikingly rare surface network and the interrelation occurring between this phenomenon ...

The rock debris material of the waste zone in Cretaceous rock within the NW part of the Nida Trough shows numerous traces of cryogenic perturbations. The latter were recognized and described as crevice formations and debris ...

The article is founded upon experience derived from the authors’ stays with youth groups in Bulgaria: on the example of several routes they have been able to prove how within the same expense, the same time and following ...