@article{MZM_2006_79_3_a15,
     author = {V. A. Smirnov},
     title = {Secondary {Steenrod} operations in cohomology of infinite-dimensional projective spaces},
     journal = {Matemati\v{c}eskie zametki},
     pages = {476--480},
     publisher = {mathdoc},
     volume = {79},
     number = {3},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2006_79_3_a15/}
}