Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1988_43_1_a8, author = {R. S. Makin}, title = {A class of linear positive operators}, journal = {Matemati\v{c}eskie zametki}, pages = {71--81}, publisher = {mathdoc}, volume = {43}, number = {1}, year = {1988}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1988_43_1_a8/} }
R. S. Makin. A class of linear positive operators. Matematičeskie zametki, Tome 43 (1988) no. 1, pp. 71-81. http://geodesic.mathdoc.fr/item/MZM_1988_43_1_a8/