@article{JCA_2020_27_1_JCA_2020_27_1_a11,
     author = {J. Bernis and P. Bettiol and C. Mariconda},
     title = {Higher {Order} {Problems} in the {Calculus} of {Variations:} {Du} {Bois-Reymond} {Condition} and {Regularity} of {Minimizers}},
     journal = {Journal of convex analysis},
     pages = {179--204},
     year = {2020},
     volume = {27},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/JCA_2020_27_1_JCA_2020_27_1_a11/}
}