@article{MZM_2015_98_6_a0,
     author = {V. K. Beloshapka},
     title = {A {Seven-Dimensional} {Family} of {Simple} {Harmonic} {Functions}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {803--808},
     publisher = {mathdoc},
     volume = {98},
     number = {6},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2015_98_6_a0/}
}