@article{IM_1980__62_142777,
     author = {Leo Jonker and David Rand},
     title = {Bifurcations in {One} {Dimension.} {I.} {The} {Nonwandering} {Set.}},
     journal = {Inventiones mathematicae},
     pages = {347--366},
     publisher = {mathdoc},
     volume = {62},
     year = {1980},
     zbl = {0475.58014},
     url = {http://geodesic.mathdoc.fr/item/IM_1980__62_142777/}
}