000 00401nam a2200157Ia 4500
082 _a309.51509492
_bH758.OM
100 _aHoltgrefe, A. A. I.
245 _aOptimizing medium term planning model for the Netherlands railways
_b
260 _aRotterdam
_bRotterdam University Press
_c1975
300 _axiv, 164p.
500 _a
690 _a
700 _a
964 _a
_b
_c
_d
_e
_f
_g
921 _a3741
999 _c3741
_d3741