00565nam a2200145Ia 4500082001900000100011100019240003300130245014300163260003500306300001700341500000500358653000600363700002500369700002500394  a530.3bC748.CA  aConference on "Constructive Approaches to Mathematical Models", Pittsburgh, Pennsylvania, 10-14 July, 1978  aDuffin, R. J.; in honor of-.  aConstructive approaches to mathematical models; proceedings of a conference in honor of R. J. DuffinbcEd. by C. V. Coffman and G. J. Fix  aNew YorkbAcademic Pressc1979  axviii, 458p.  a  a   aCoffman, C. V. ; ed.  aFix, G. J. ; jt. ed.