@article{10_1007_s10492_009_0018_4,
     author = {Azari, Hossein and Zhang, Shuhua},
     title = {Global superconvergence of finite element methods for parabolic inverse problems},
     journal = {Applications of Mathematics},
     pages = {285--294},
     publisher = {mathdoc},
     volume = {54},
     number = {3},
     year = {2009},
     doi = {10.1007/s10492-009-0018-4},
     mrnumber = {2530544},
     zbl = {1212.35498},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1007/s10492-009-0018-4/}
}