@conference {yasarcan2003general, title = {A general stock control formulation for stock management problems involving delays and secondary stocks}, booktitle = {The 21st International System Dynamics Conference, New York City, USA}, year = {2003}, publisher = {System Dynamics Society (http://www.systemdynamics.org/conferences/2003/index.htm)}, organization = {System Dynamics Society (http://www.systemdynamics.org/conferences/2003/index.htm)}, author = {Yasarcan, Hakan and Barlas, Yaman} }