@article{ISU_2009_9_2_a1,
     author = {N. N. Bogdanova and K. M. Rasulov},
     title = {About the solution of nondegenerate four-element boundary value problem of {Karleman} type for bianalytical functions in circle},
     journal = {Izvestiya of Saratov University. Mathematics. Mechanics. Informatics},
     pages = {6--12},
     publisher = {mathdoc},
     volume = {9},
     number = {2},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ISU_2009_9_2_a1/}
}