@article{BUMI_2012_9_5_3_a1,
     author = {Frehse, Jens and Specovius-Neugebauer, Maria},
     title = {Fractional {Interior} {Differentiability} of the {Stress} {Velocities} to {Elastic} {Plastic} {Problems} with {Hardening}},
     journal = {Bollettino della Unione matematica italiana},
     pages = {469--494},
     publisher = {mathdoc},
     volume = {Ser. 9, 5},
     number = {3},
     year = {2012},
     zbl = {1278.35242},
     mrnumber = {3051733},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/BUMI_2012_9_5_3_a1/}
}