00371nam a2200145Ia 4500008004100000020001500041082001900056100002100075245002500096260003500121300000800156650001800164650001800182653002500200170901s1996    xx            000 0 und d  a0412591901  a574.5247bW54B  aWilliamson, Mark 0aBiological Invasions  aLondonbChapman and Hallc1996  a244  aLife sciences  aPure Sciences  aBiological invasions