@article{ZNSL_1984_135_a0,
     author = {D. Z. Arov},
     title = {On functionsof class~$\Pi$},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {5--30},
     year = {1984},
     volume = {135},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1984_135_a0/}
}