TY  - JOUR
AU  - L. R. Hunt
AU  - J. J. Murray
AU  - M. J. Strauss
TI  - Liouville's theorem for first-order partial differential operators
JO  - Colloquium Mathematicum
PY  - 1979
SP  - 117
EP  - 121
VL  - 41
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/cm-41-1-117-121/
DO  - 10.4064/cm-41-1-117-121
LA  - en
ID  - 10_4064_cm_41_1_117_121
ER  -