4
Опубликовано 2007
Full text available from Earth, Atmospheric & Aquatic Science Database: 03/01/2010 to present
Full text available from East Europe, Central Europe Database: 03/01/2010 to present
Электронный ресурс Журнал
6
Опубликовано 2007
Full text available from Earth, Atmospheric & Aquatic Science Database: 05/01/2004 to 12/31/2018
Full text available from Science Database: 05/01/2004 to 12/31/2018
Электронный ресурс Журнал
7
Опубликовано 1996
Available in Education Source.
Электронный ресурс Журнал