@article{ZNSL_1998_255_a13,
     author = {S. M. Shimorin},
     title = {Reproducing kernels and extremal functions in {Dirichlet} type spaces},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {198--220},
     publisher = {mathdoc},
     volume = {255},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1998_255_a13/}
}