@article{FAA_1981_15_1_a1,
     author = {V. F. Gaposhkin},
     title = {Individual ergodic theorem for normal operators in $L_2$},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {18--22},
     publisher = {mathdoc},
     volume = {15},
     number = {1},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1981_15_1_a1/}
}