Amazon.co.jp: Beckmann spielt Cello: Thomas Beckmann, Kayoko: Digital Music
PDF) Beckmann, J. P., A. P. Clevenger, M. P. Huijser, and J. A. Hilty (eds.). 2010. Safe Passages: Highways, Wildlife, and Habitat Connectivity. Island Press, Washington, D.C., 383 pp. price (paper), $40.00., ISBN 978-1-5972-6654-3.
Michael Beckmann - Helmholtz-Centre for Environmental Research