@article{RM_1990_45_2_a10, author = {G. G. Magaril-Il'yaev}, title = {$\varphi$-mean diameters of classes of functions on the line}, journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova}, pages = {218--219}, publisher = {mathdoc}, volume = {45}, number = {2}, year = {1990}, language = {en}, url = {http://geodesic.mathdoc.fr/item/RM_1990_45_2_a10/} }