000			00311nam a2200121Ia 4500
001			103484
008			170722s9999 xx 000 0 und d
100			_aHansen, Bent
245			_aLong and short term planning in underdeveloped countries /
260			_c1967.
490			_aDe Vries (F) Lecutres
942			_cGEN
999			_c75154 _d75154