@article{articleeef4af3a,
title   = {Singularities of the geodesic flow on surfaces with pseudo-Riemannian metrics},
author = {Remizov, A. O and Tari, Farid},
year = {2016},
doi = {10.1007/s10711-016-0172-2},
journal   = {Geometriae Dedicata}
}