@article{SIGMA_2017_13_a49,
     author = {Bohdana I. Hladysh and Aleksandr O. Prishlyak},
     title = {Topology of {Functions} with {Isolated} {Critical} {Points} on the {Boundary} {of~a~2-Dimensional} {Manifold}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2017},
     volume = {13},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2017_13_a49/}
}