@article{NUMA_1967__10_131767,
     author = {A.R. MITCHELL and G. FAIRWEATHER and A.R. GOURLAY},
     title = {Some {High} {Accuracy} {Difference} {Schemes} with a {Splitting} {Operator} for {Equations} of {Parabolic} and {Elliptic} {Type.}},
     journal = {Numerische Mathematik},
     pages = {56--66},
     publisher = {mathdoc},
     volume = {10},
     year = {1967},
     zbl = {0148.39403},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1967__10_131767/}
}