@article{GDZPPN002108712,
title = {Invariant measures exist under a summability condition for unimodal maps.},
journal = {Inventiones mathematicae},
volume = {104},
year = {1991},
pages = {123-136},
zbl = {0736.58030},
url = {http://dml.mathdoc.fr/item/GDZPPN002108712}
}
Nowicki, Tomasz; Strien, Sebastian van. Invariant measures exist under a summability condition for unimodal maps.. Inventiones mathematicae, Tome 104 (1991) pp. 123-136. http://gdmltest.u-ga.fr/item/GDZPPN002108712/