@article{RM_1983_38_1_a20,
     author = {L. P. Kuptsov},
     title = {On~a~class of parabolic means},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {202--203},
     publisher = {mathdoc},
     volume = {38},
     number = {1},
     year = {1983},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1983_38_1_a20/}
}