@inproceedings{inproceedingsc57a2804, title = {Classification of singular levels and Morse Bott integrable systems on surfaces}, author = {Oliveira, Regilene Delazari dos Santos and Sarmiento, I. S. M and Martínez-Alfaro, J}, year = {2016}, publisher = {ICMC-USP}, booktitle = {International Workshop on Real and Complex Singularities} }