Refbacks
- There are currently no refbacks.
![](/public/site/images/onkadmin/dj_logo1.png)
![](/public/site/images/onkadmin/ulrichs_logo.gif)
![](/public/site/images/onkadmin/ebsco1.png)
![](/public/site/images/onkadmin/elibrary_logo.jpg)
![](/public/site/images/onkadmin/vak1.png)
![](/public/site/images/onkadmin/oai_logo1.png)
![](/public/site/images/onkadmin/cyberleninka_sm1.png)
![](/public/site/images/onkadmin/crossref1.png)
![](/public/site/images/onkadmin/wrldcat_logo1.png)
![](/public/site/images/onkadmin/logo_цнб_уро_ран1.gif)
![](/public/site/images/onkadmin/logo_нб_коми_нц1.png)
![](/public/site/images/onkadmin/scholar1.png)
![](/public/site/images/onkadmin/GeoRefsm1.png)
A. Ya. Gaev
Orenburg State University, Institute of Ecological Problems of the Hydrosphere of OSU
Russian Federation
Professor of Geological Department of Geologo-geographic Faculty
I. V. Kudelina
Orenburg State University, Institute of Ecological Problems of the Hydrosphere of OSU
Russian Federation
Assistant Professor of Geological Department of Geologo-geographic Faculty
The PDF file you selected should load here if your Web browser has a PDF reader plug-in installed (for example, a recent version of Adobe Acrobat Reader).
If you would like more information about how to print, save, and work with PDFs, Highwire Press provides a helpful Frequently Asked Questions about PDFs.
Alternatively, you can download the PDF file directly to your computer, from where it can be opened using a PDF reader. To download the PDF, click the Download link above.