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@article{ARM_1985__21_2_a3, author = {Bartu\v{s}ek, Miroslav}, title = {The asymptotic behaviour of oscillatory solutions of the equation of the fourth order}, journal = {Archivum mathematicum}, pages = {93--104}, publisher = {mathdoc}, volume = {21}, number = {2}, year = {1985}, mrnumber = {817551}, zbl = {0579.34040}, language = {en}, url = {http://geodesic.mathdoc.fr/item/ARM_1985__21_2_a3/} }
Bartušek, Miroslav. The asymptotic behaviour of oscillatory solutions of the equation of the fourth order. Archivum mathematicum, Tome 21 (1985) no. 2, pp. 93-104. http://geodesic.mathdoc.fr/item/ARM_1985__21_2_a3/