22
25
Published 1998
Full text available from East Europe, Central Europe Database: 01/01/2012 to present
Electronic Journal
31
Published 2019
Full text available from Research Library: 07/01/2002 to 12/31/2019
Electronic Journal
32
40
Published 2005
Full text available from Earth, Atmospheric & Aquatic Science Database: 01/01/2005 to present
Electronic Journal