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@article{DE_2000_36_2_a0, author = {N. V. Assonova and V. D. Budaev}, title = {The {Hilbert} and {Bessel} properties of systems of eigenfunctions of second-order operators}, journal = {Differencialʹnye uravneni\^a}, pages = {147--151}, publisher = {mathdoc}, volume = {36}, number = {2}, year = {2000}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_2000_36_2_a0/} }
TY - JOUR AU - N. V. Assonova AU - V. D. Budaev TI - The Hilbert and Bessel properties of systems of eigenfunctions of second-order operators JO - Differencialʹnye uravneniâ PY - 2000 SP - 147 EP - 151 VL - 36 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_2000_36_2_a0/ LA - ru ID - DE_2000_36_2_a0 ER -
N. V. Assonova; V. D. Budaev. The Hilbert and Bessel properties of systems of eigenfunctions of second-order operators. Differencialʹnye uravneniâ, Tome 36 (2000) no. 2, pp. 147-151. http://geodesic.mathdoc.fr/item/DE_2000_36_2_a0/