@article{VYURU_2014_7_3_a11,
     author = {G. A. Zakirova and E. V. Kirillov},
     title = {Introducing a power of the operator in direct spectral problems},
     journal = {Vestnik \^U\v{z}no-Uralʹskogo gosudarstvennogo universiteta. Seri\^a, Matemati\v{c}eskoe modelirovanie i programmirovanie},
     pages = {116--120},
     publisher = {mathdoc},
     volume = {7},
     number = {3},
     year = {2014},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/VYURU_2014_7_3_a11/}
}