@article{SM_1972_16_1_a4,
     author = {Yu. S. Ilyashenko},
     title = {Cycle breaking in fiberings on analytic curves},
     journal = {Sbornik. Mathematics},
     pages = {60--68},
     year = {1972},
     volume = {16},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1972_16_1_a4/}
}