@article{IM2_1987_29_2_a8,
     author = {H. Zieschang},
     title = {Minimal geodesics of a~torus with a~hole},
     journal = {Izvestiya. Mathematics },
     pages = {449--457},
     publisher = {mathdoc},
     volume = {29},
     number = {2},
     year = {1987},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1987_29_2_a8/}
}