1. Optimization of stagewise reactors;Aris,1960
2. Some optimization problems in chemical engineering;Aris;Chem. Eng. Progr. Symposium Ser.,1960
3. On optimum cross current extraction;Aris;Chem. Eng. Sci.,1960
4. “Dynamic Programming.”;Bellman,1957
5. Application of dynamic programming to counter current flow processes;Dranoff;Operations Research,1961