@article{10_1017_S0008439500029076,
     author = {Duff, G.F.D.},
     title = {Multiple integrals in the calculus of variations by {C.B.} {Morrey.} {Springer-Verlag,} {New} {York,} 1966. ix + 506 pages.},
     journal = {Canadian mathematical bulletin},
     pages = {313--314},
     year = {1968},
     volume = {11},
     number = {2},
     doi = {10.1017/S0008439500029076},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0008439500029076/}
}