@article{TRSPY_1949_28_a8,
     author = {V. N. Faddeeva},
     title = {On fundamental functions of the operator $x^{\mathrm{IV}}$},
     journal = {Informatics and Automation},
     pages = {157--159},
     publisher = {mathdoc},
     volume = {28},
     year = {1949},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1949_28_a8/}
}