@article{MZM_2015_97_1_a8,
     author = {Yu. V. Kostromina},
     title = {Orthogonality of the {Modules} of {Dual} {Groups}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {80--84},
     publisher = {mathdoc},
     volume = {97},
     number = {1},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2015_97_1_a8/}
}