00486nam a2200121Ia 4500008004100000040001700041082002300058100001900081245016000100260003900260300001400299650005100313190328s9999||||xx |||||||||||||| ||und||  aNITILcNITIL  221sta330.9bT965M  aTustin, Arnold 4aThe Mechanism of economic systemsban approach to the problem of economic stabilisation from the point of view of control system engineeringcArnold Tustin  aMelbournebWilliam Heinemannc1953  axi, 161p.  aEconomic policy; Economics-Mathematical models