@article{ZNSL_2011_389_a13,
     author = {H. Hedenmalm and N. A. Shirokov},
     title = {Keldysh--Lavrentiev counterexample and means of powers of conformal mapping. {1.~Construction} of a~mapping},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {252--256},
     publisher = {mathdoc},
     volume = {389},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2011_389_a13/}
}