Dumortier, Freddy and Others <br/><br/>
Germs of diffeomorphisms in the plane   
By Freddy Dumortier, Paulo R. Rodrigues and Robert Roussarie 
 - Berlin  Springer-Verlag  1981 
 - iv, 197p. Index 
 - Lecture notes in Mathematics   902 .
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<br/><br/><label>Dewey Class. No.: </label>516  / D894.GD