Outerelo, Enrique Mapping degree theory Enrique Outerelo and Jesus M. Ruiz - - Spain American Mathematical Society 2009 - 244 Graduate Studies in Mathematics Volume 108 ISBN: 9780821887141 Subjects--Topical Terms: ᅠᅠMappings (Mathematics).ᅠTopological degree.ᅠ Dewey Class. No.: 515.7248 OUT-E