@article{MM2_1987__59_155248,
     author = {Mariano Giauquinta},
     title = {Grwoth conditions and regularity, a counterexample.},
     journal = {Manuscripta mathematica},
     pages = {245--248},
     publisher = {mathdoc},
     volume = {59},
     year = {1987},
     url = {http://geodesic.mathdoc.fr/item/MM2_1987__59_155248/}
}