Luengo Velasco, IgnacioGómez-Mont Ávalos, Xavier2023-06-202023-06-2019921432-129710.1007/BF01232024https://hdl.handle.net/20.500.14352/57619Supported by Université de Toulouse, CONACYT-CNRS and CAICYT-87-336Oblatum 28-XII-1988 & 26-III-1990 & 10-X-1990 & 13-VI-1991 & 30-IX-1991. Supported by Université de Toulouse, CONACYT-CNRS and CAICYT-87-336 Fulltext Previewengjournal articlehttp://www.springerlink.com/content/u8j345120465642g/abstract/http://www.springerlink.com/restricted access519.8Investigación operativa (Matemáticas)1207 Investigación Operativa