@article{01142956, title = {Existence of eigenvalues for (uaa) Markov maps.}, journal = {Portugaliae Mathematica. Nova S\'erie}, volume = {54}, year = {1997}, pages = {421-429}, zbl = {0903.58025}, language = {en}, url = {http://dml.mathdoc.fr/item/01142956} }
Ferreira, F.F.; Pinto, A.A. Existence of eigenvalues for (uaa) Markov maps.. Portugaliae Mathematica. Nova Série, Tome 54 (1997) pp. 421-429. http://gdmltest.u-ga.fr/item/01142956/