@article{GDZPPN001178652,
title = {On the Convergence of Difference Schemes for the Approximation of Solutions u...W... (m\>0.5) of Elliptic Equations with Mixed Derivatives.},
journal = {Numerische Mathematik},
volume = {44},
year = {1984},
pages = {223-232},
zbl = {0525.65069},
url = {http://dml.mathdoc.fr/item/GDZPPN001178652}
}
Lazarov, R.D.; Makarov, V.; Weinelt, W. On the Convergence of Difference Schemes for the Approximation of Solutions u...W... (m>0.5) of Elliptic Equations with Mixed Derivatives.. Numerische Mathematik, Tome 44 (1984) pp. 223-232. http://gdmltest.u-ga.fr/item/GDZPPN001178652/