@article{NUMA_1986__50_133172,
     author = {Alfredo Fetter},
     title = {L...-Error {Estimate} for an {Approximation} of a {Parabolic} {Variational} {Inequality.}},
     journal = {Numerische Mathematik},
     pages = {557--566},
     publisher = {mathdoc},
     volume = {50},
     year = {1986},
     zbl = {0617.65064},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1986__50_133172/}
}