@article{MZM_2004_76_3_a15,
     author = {A. L. Yakymiv},
     title = {Admissible {Functions} for the {Positive} {Octant}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {466--472},
     publisher = {mathdoc},
     volume = {76},
     number = {3},
     year = {2004},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2004_76_3_a15/}
}