@article{ZNSL_1983_123_a1,
     author = {G. Ya. Gitel'son},
     title = {Semifinite characters of~$U(\infty)$},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {36--45},
     publisher = {mathdoc},
     volume = {123},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1983_123_a1/}
}