A close investigation of the Glacial surface relief was carried out in 1956 in the W. Beskids. On the ground of these researches conclusions have been reached stating, that forms till now considered to be of glacial ...

The author's attention is focused on the rejuvenation of ancient landslides of various types, and their subsequent transformations landslide rejuvenation depends on the relief and the general structure of shifted rocks. ...

The author draws the reader's attention to the fact that inundational accumulation occurs not only in valleys where the gradient is slight, but also in incised valleys where the gradients exceed 100‰. The latter valleys ...

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 ...