S. Tyszkowski
Institute of Geography and Spatial Organization, Polish Academy of Sciences, Department of Environmental Resources and Geohazards.
Poland

Sebastian Tyszkowski, PhD. 

Toruń.

H. Kaczmarek
Institute of Geography and Spatial Organization, Polish Academy of Sciences, Department of Environmental Resources and Geohazards.
Poland

Halina Kaczmarek, PhD.

Toruń.

S. Linowski
Department of Hydrology and Water Management, Nicolaus Copernicus University.
Poland

Włodzimierz Marszelewski, Associated Professor.

Toruń.

S. Linowski
Department of Hydrology and Water Management, Nicolaus Copernicus University.
Poland

Szymon Linowski, MSc.

Toruń.

E. A. Kozyreva
Institute of the Earth's Crust, Siberian Branch of RAS.
Russian Federation

Elena A. Kozyreva, Candidate of Geology and Mineralogy, Head of Laboratory.

Irkutsk.