@article{bwmeta1.element.zamlynska-5615861c-0c71-42fd-a04d-5e6be578cf63,
author = {Uwe Hamann and G\"unther Wildenhain},
title = {Approximation by solutions of general boundary value problems for elliptic equations of arbitrary order},
journal = {Banach Center Publications},
volume = {19},
year = {1987},
pages = {113-119},
zbl = {0647.35006},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.zamlynska-5615861c-0c71-42fd-a04d-5e6be578cf63}
}
Uwe Hamann; Günther Wildenhain. Approximation by solutions of general boundary value problems for elliptic equations of arbitrary order. Banach Center Publications, Tome 19 (1987) pp. 113-119. http://gdmltest.u-ga.fr/item/bwmeta1.element.zamlynska-5615861c-0c71-42fd-a04d-5e6be578cf63/