@article{CMJ_2009__59_3_a13,
     author = {Crampin, M. and Saunders, D. J.},
     title = {Some concepts of regularity for parametric multiple-integral problems in the calculus of variations},
     journal = {Czechoslovak Mathematical Journal},
     pages = {741--758},
     publisher = {mathdoc},
     volume = {59},
     number = {3},
     year = {2009},
     mrnumber = {2545653},
     zbl = {1224.58012},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMJ_2009__59_3_a13/}
}