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Schritte zum nachhaltigen Unternehmen : zukunftsweisende Praxiskonzepte des Umweltmanagements
Klaus Fichter, Jens Clausen (Hrsg.) ; mit...
Bok Tysk 2012
International environmental management benchmarks : best practice experiences from America, Japan and Europe
David M.W.N. Hitchens, Jens Clausen, Klau...
Bok Engelsk 1999
Integer programming and combinatorial optimization : 4th International IPCO Conference, Copenhagen, Denmark, May 29-31, 1995 : proceedings
International IPCO Conference
Bok Engelsk 1995
Stages in the evolution of plant species
Jens Clausen
Bok Engelsk 1962
Genetical and cytological investigations on Viola tricolor L. and V. arvensis Murr.
Clausen, Jens
Bok Engelsk 1926