@article{MM_2007_19_10_a0,
     author = {A. M. Bubenchikov and V. S. Poponin and D. K. Firsov},
     title = {Spectral element method for boundary value problems on unstructered grid},
     journal = {Matemati\v{c}eskoe modelirovanie},
     pages = {3--14},
     publisher = {mathdoc},
     volume = {19},
     number = {10},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MM_2007_19_10_a0/}
}