@article{MABA_1988_2_3-4_a4,
     author = {D. Repovsh},
     title = {A {Topological} {Dehn's} {Lemma}},
     journal = {Mathematica balkanica},
     pages = {306},
     publisher = {mathdoc},
     volume = {2},
     number = {3-4},
     year = {1988},
     url = {http://geodesic.mathdoc.fr/item/MABA_1988_2_3-4_a4/}
}