@article{ZNSL_1991_196_a9,
     author = {A. Yu. Solinin},
     title = {The modules of doubly connected domains and conformal invariant metrics},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {122--131},
     year = {1991},
     volume = {196},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1991_196_a9/}
}