@article{GDZPPN002416530,
title = {On the Variational Characterization of Bivariate Interpolation Methods.},
journal = {Mathematische Zeitschrift},
volume = {142},
year = {1975},
pages = {129-138},
zbl = {0296.41003},
url = {http://dml.mathdoc.fr/item/GDZPPN002416530}
}
Delvos, Franz-Jürgen; Kösters, H.-W. On the Variational Characterization of Bivariate Interpolation Methods.. Mathematische Zeitschrift, Tome 142 (1975) pp. 129-138. http://gdmltest.u-ga.fr/item/GDZPPN002416530/