@article{1256054894, author = {Bourgin, D. G.}, title = {Multiplicity of solutions in frame mappings, II}, journal = {Illinois J. Math.}, volume = {10}, number = {4}, year = {1966}, pages = { 557-562}, language = {en}, url = {http://dml.mathdoc.fr/item/1256054894} }
Bourgin, D. G. Multiplicity of solutions in frame mappings, II. Illinois J. Math., Tome 10 (1966) no. 4, pp. 557-562. http://gdmltest.u-ga.fr/item/1256054894/