@article{ZNSL_2007_350_a3,
     author = {E. G. Emel'yanov},
     title = {On quadratic differentials in multiply connected domains that are perfect {squares.~II}},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {40--51},
     year = {2007},
     volume = {350},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2007_350_a3/}
}