000			00316nam a2200121Ia 4500
001			117961
008			170722s9999 xx 000 0 und d
100			_aShearer, J. Lowen
245			_aIntroduction to system dynamics /
260			_c1967.
490			_aAddison-wesley series in systems and constrols
942			_cGEN
999			_c77932 _d77932