@article{CMUC_1980__21_4_a15, author = {Tarafdar, Enayat}, title = {On the existence of solution of the equation $L(x) = N(x)$ and a generalized coincidence degree theory. {I.}}, journal = {Commentationes Mathematicae Universitatis Carolinae}, pages = {805--823}, publisher = {mathdoc}, volume = {21}, number = {4}, year = {1980}, mrnumber = {597769}, zbl = {0463.47046}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CMUC_1980__21_4_a15/} }