000 00276nam a2200121Ia 4500
008 200208s9999 xx 000 0 und d
082 _aSEP
245 0 _aSocio- Economic Planning Sciences
245 0 _nv.27(1-4)
260 _aNew York
260 _bPergamon
942 _cBV
999 _c142344
_d142344