@incollection{AST_1978__51__335_0,
     author = {Palis, J.},
     title = {A differentiable invariant of topological conjugacies and moduli of stability},
     booktitle = {Syst\`emes dynamiques III - Varsovie},
     series = {Ast\'erisque},
     pages = {335--346},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {51},
     year = {1978},
     mrnumber = {494283},
     zbl = {0396.58015},
     language = {en},
     url = {http://archive.numdam.org/item/AST_1978__51__335_0/}
}