@article{ZNSL_2012_404_a6,
     author = {E. G. Emel'yanov and G. V. Kuz'mina},
     title = {The {Vuorinen} problem on the maximum of the conformal module},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {120--134},
     publisher = {mathdoc},
     volume = {404},
     year = {2012},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2012_404_a6/}
}