TY - DATA AU - F. Dumortier AU - P. R. Rodrigues AU - R Roussarie TI - Germs of Diffeomorphisms in the Plane T2 - Lecture Notes in Mathematics SN - 9783540389583 PY - 1981/// CY - Heidelberg PB - Springer Berlin KW - Mathematics and Statistics UR - https://doi.org/10.1007/BFb0095812 ER -