TY  - JOUR
AU  - Vidar Thomée
TI  - Existence Proofs for Mixed Problems for Hyperbolic Differential Equations in Two Independent Variables by Means of the Continuity Method.
JO  - Mathematica Scandinavica
PY  - 1958
SP  - 5
EP  - 32
VL  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MS2_1958__6_165672/
ID  - MS2_1958__6_165672
ER  -