Wittenberg R. author 2005 CABI Bioscience Switzerland Centre report to the Swiss Agency for Environment, Forest and Landscape. monographic exported from refbase (http://demo.refbase.net/show.php?record=2481), last updated on Fri, 04 May 2012 16:22:44 +0200 text Wittenberg2005 refbase @ user @ Wittenberg2005 book