TY - JOUR AU - Duff, G.F.D. TI - Multiple integrals in the calculus of variations by C.B. Morrey. Springer-Verlag, New York, 1966. ix + 506 pages. JO - Canadian mathematical bulletin PY - 1968 SP - 313 EP - 314 VL - 11 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.1017/S0008439500029076/ DO - 10.1017/S0008439500029076 ID - 10_1017_S0008439500029076 ER -