@InCollection{zbMATH00066596,
Author = {Ecalle, Jean P.},
Title = {The acceleration operators and their applications to differential equations, quasianalytic functions, and the constructive proof of {Dulac}'s conjecture},
BookTitle = {Proceedings of the international congress of mathematicians (ICM), August 21-29, 1990, Kyoto, Japan. Volume II},
ISBN = {4-431-70047-1},
Pages = {1249--1258},
Year = {1991},
Publisher = {Tokyo etc.: Springer-Verlag},
Language = {English},
Keywords = {30D60},
zbMATH = {66596},
Zbl = {0741.30030}
}