@article{AIF_1994__44_4_1219_0, author = {Calvo-Andrade, Omegar and Soares, Marcio G.}, title = {Chern numbers of a {Kupka} component}, journal = {Annales de l'Institut Fourier}, pages = {1219--1236}, publisher = {Association des Annales de l{\textquoteright}institut Fourier}, volume = {44}, number = {4}, year = {1994}, doi = {10.5802/aif.1431}, zbl = {0811.32024}, mrnumber = {95m:32045}, language = {en}, url = {http://archive.numdam.org/articles/10.5802/aif.1431/} }