Moshe Friedman On the analysis and solution of certain geographical optimal covering problems. [Citation Graph (0, 0)][DBLP] Computers & OR, 1976, v:3, n:4, pp:283-294 [Journal]
Jacob Intrator, Benjamin Lev Methods for identification of vanishing variables in transportation problems and its possible applications. [Citation Graph (0, 0)][DBLP] Computers & OR, 1976, v:3, n:4, pp:295-304 [Journal]
Maurice Pollack Interactive models in operations research - an introduction and some future research directions. [Citation Graph (0, 0)][DBLP] Computers & OR, 1976, v:3, n:4, pp:305-312 [Journal]