@article{VUU_2009_3_a6,
     author = {N. V. Latypova},
     title = {Error of interpolation by a~piecewise parabolic polynomial on a~triangle},
     journal = {Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹ\^uternye nauki},
     pages = {91--97},
     year = {2009},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VUU_2009_3_a6/}
}