5
Gepubliceerd in 1978
Full text available from Earth, Atmospheric & Aquatic Science Database: 01/01/2002 to present
Elektronisch Serie
10
Gepubliceerd in 2007
Full text available from Science Database: 01/01/2007 to present
Elektronisch Serie
14
Gepubliceerd in 1991
Full text available from Research Library: 01/01/2006 to present
Elektronisch Serie
16
Full text available from Social Science Database: 01/01/2005 to present
Elektronisch Serie