@article{MM2_1996__91_3_156230,
     author = {Daniel Hug},
     title = {Contributions to {Affine} {Surface} {Area.}},
     journal = {Manuscripta mathematica},
     pages = {283--302},
     publisher = {mathdoc},
     volume = {91},
     number = {3},
     year = {1996},
     zbl = {0871.52004},
     url = {http://geodesic.mathdoc.fr/item/MM2_1996__91_3_156230/}
}