@article{IM2_1997_61_5_a0,
     author = {V. A. Dobrynskii},
     title = {On semi-unimodal maps of the plane and the structure of their sets of non-wandering points},
     journal = {Izvestiya. Mathematics },
     pages = {899--931},
     publisher = {mathdoc},
     volume = {61},
     number = {5},
     year = {1997},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1997_61_5_a0/}
}