@article{article0bf9bd67,
title   = {Singular levels and topological invariants of Morse–Bott foliations on non-orientable surfaces},
author = {Martínez-Alfaro, José and Meza-Sarmiento, Ingrid S and Oliveira, Regilene Delazari dos Santos},
year = {2018},
doi = {10.12775/TMNA.2017.051},
journal   = {Topological Methods in Nonlinear Analysis}
}