Karst rock types of the Perm region
This article focuses on the development features and distribution patterns of karst rocks in the Perm region, as well as their impact on the economic activity.
1. Атлас геолого-экономических электронных карт на базе компьютерной программы ArcView GIS 3.2a. Пермь, 2000.
2. Блинова ...
The history of bird studies in the Upper Kama area (the Komi-Permyak district and adjacent territory)
... Пермской области // Проблемы региональной Красной книги: межведомственный сб. науч. тр. Пермь, 1997. С. 112—113.
Shepel A. I., Kharin R. V.
birds, history of exploration, Perm region, Upper Kama area.
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