@article{702190,
title = {The parabolic equations as a limiting case of hyperbolic and elliptic equations},
booktitle = {Differential Equations and Their Applications},
series = {GDML\_Books},
publisher = {Publishing House of the Czechoslovak Academy of Sciences},
address = {Prague},
year = {1963},
pages = {243-247},
mrnumber = {MR0177213},
zbl = {0161.30303},
url = {http://dml.mathdoc.fr/item/702190}
}
Zlámal, M. The parabolic equations as a limiting case of hyperbolic and elliptic equations, dans Differential Equations and Their Applications, GDML_Books, (1963), pp. 243-247. http://gdmltest.u-ga.fr/item/702190/