@article{05038340, title = {Nielsen number and differential equations.}, journal = {Fixed Point Theory and Applications [electronic only]}, volume = {2005}, year = {2005}, pages = {137-167}, doi = {10.1155/FPTA.2005.137}, zbl = {1104.34031}, language = {en}, url = {http://dml.mathdoc.fr/item/05038340} }
Andres, Jan. Nielsen number and differential equations.. Fixed Point Theory and Applications [electronic only], Tome 2005 (2005) pp. 137-167. doi : 10.1155/FPTA.2005.137. http://gdmltest.u-ga.fr/item/05038340/