@article{NUMA_1967__10_131768,
     author = {A.R. MITCHELL and P. KEAST},
     title = {Finite {Difference} {Solution} of the {Third} {Boundary} {Problem} in {Elliptic} and {Parabolic} {Equations.}},
     journal = {Numerische Mathematik},
     pages = {67--75},
     publisher = {mathdoc},
     volume = {10},
     year = {1967},
     zbl = {0189.49001},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1967__10_131768/}
}