@article{MM2_1997__92_3_156266,
     author = {Martin Fuchs and Li Gongbao},
     title = {Global {Gradient} {Bounds} for {Relaxed} variational problems.},
     journal = {Manuscripta mathematica},
     pages = {287--302},
     publisher = {mathdoc},
     volume = {92},
     number = {3},
     year = {1997},
     zbl = {0892.49027},
     url = {http://geodesic.mathdoc.fr/item/MM2_1997__92_3_156266/}
}