TY  - JOUR
AU  - J. Langer
AU  - D. Singer
TI  - Liouville integrability of geometric variational problems.
JO  - Commentarii mathematici Helvetici
PY  - 1994
SP  - 272
EP  - 280
VL  - 69
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMH_1994__69_4_140338/
ID  - CMH_1994__69_4_140338
ER  -