@article{MM2_1973__9_154159,
     author = {Jens Frehse},
     title = {On the {Regularity} of the {Solution} of the {Biharmonic} {Variational} {Inequality.}},
     journal = {Manuscripta mathematica},
     pages = {91--104},
     publisher = {mathdoc},
     volume = {9},
     year = {1973},
     zbl = {0252.35031},
     url = {http://geodesic.mathdoc.fr/item/MM2_1973__9_154159/}
}