@article{JSFU_2014_7_3_a0,
     author = {Yury Ya. Belov and Vera G. Kopylova},
     title = {Determination of source functions in composite type system of equations},
     journal = {\v{Z}urnal Sibirskogo federalʹnogo universiteta. Matematika i fizika},
     pages = {275--288},
     publisher = {mathdoc},
     volume = {7},
     number = {3},
     year = {2014},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JSFU_2014_7_3_a0/}
}