@article{10_14708_cm_v23i1_6037,
     author = {K. Mazur},
     title = {On the curvature of level-lines in certain classes of starlike meromorphic functions},
     journal = {Commentationes Mathematicae},
     pages = { 59--62},
     publisher = {mathdoc},
     volume = {23},
     number = {1},
     year = {1983},
     doi = {10.14708/cm.v23i1.6037},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/cm.v23i1.6037/}
}