Kröger

Fundamental Astronomy

By Karttunen, Hannu, Kröger, Pekka, Oja, Heikki, Poutanen, Markku, Donner, Karl Johan

Identity in Adolescence: The Balance Between Self and Other (Adolescence and Society)

By Kröger, Jane

Energy and the Environment: 15 (Environmental Science and Technology Library)

By Bejan, Adrian, Vadász, Peter, Kröger, Detlev G.