@article{CMUC_1979_20_1_a12,
     author = {Giaquinta, Mariano and Modica, Giuseppe and Sou\v{c}ek, Ji\v{r}{\'\i}},
     title = {Functionals with linear growth in the calculus of variations. {I}},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {143--156},
     year = {1979},
     volume = {20},
     number = {1},
     mrnumber = {526154},
     zbl = {0409.49006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1979_20_1_a12/}
}