Department of Geography
University of Kiel
D-24098 Kiel Germany
Phone: +49 432 880 2952
Fax: +49 431 880 4658

Rothamsted Experimental Station Harpenden,
Herts England, AL5 2JQ
United Kingdom
Phone: +44 1582 763 133
Fax: +44 1582 760 981

Dokuchaev Soil Institute
Pyzhevsky Lane 7
109017 Moscow Russia
Phone: +7 095 932 11 82
Fax: +7 095 932 11 82
e-mail: makeev@fadr.msu.ru