@article{UFA_2022_14_3_a6, author = {A. A. Klyachin}, title = {On $C^1$-convergence of piecewise polynomial solutions to a fourth order variational equation}, journal = {Ufa mathematical journal}, pages = {60--69}, publisher = {mathdoc}, volume = {14}, number = {3}, year = {2022}, language = {en}, url = {http://geodesic.mathdoc.fr/item/UFA_2022_14_3_a6/} }