@article{PDMA_2017_10_a1,
     author = {A. V. Volgin and G. V. Kryuchkov},
     title = {Characterization of linear transformations defined by {Finite} {Field} {Hadamard} {Matrices} and circulant matrices},
     journal = {Prikladnaya Diskretnaya Matematika. Supplement},
     pages = {10--11},
     publisher = {mathdoc},
     number = {10},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PDMA_2017_10_a1/}
}