作者单位:
Norwegian Computing Center, Box 114 Blindern, 0314 Oslo, Norway
[1]
Institute of Marine Research, Box 1870 Nordnes, 5817 Bergen, Norway
[2]
Department of Mathematics, Univeristy of Oslo, Box 1053 Blindern, 0316 Oslo, Norway
[3]
Department of Economics, Univeristy of Oslo, Box 1095 Blindern, 0317 Oslo, Norway
[4]
发布时间
2013-11-20