@article{10_4064_fm213_2_3,
     author = {G. Gromadzki and W. Marzantowicz},
     title = {Conformal actions with prescribed
 periods on {Riemann} surfaces},
     journal = {Fundamenta Mathematicae},
     pages = {169--190},
     publisher = {mathdoc},
     volume = {213},
     number = {2},
     year = {2011},
     doi = {10.4064/fm213-2-3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm213-2-3/}
}