@article{MZM_2006_80_1_a18,
     author = {T. \"Ozdo\u{g}an and M. Orbay},
     title = {Expansion {Formula} for the {Product
}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {144--148},
     publisher = {mathdoc},
     volume = {80},
     number = {1},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2006_80_1_a18/}
}