@article{PDMA_2019_12_a5,
     author = {B. A. Pogorelov and M. A. Pudovkina},
     title = {Variations of orthomorphisms and {pseudo-Hadamard} transformations on nonabelian groups},
     journal = {Prikladnaya Diskretnaya Matematika. Supplement},
     pages = {24--27},
     publisher = {mathdoc},
     number = {12},
     year = {2019},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PDMA_2019_12_a5/}
}