@article{PORMA_1958__17_3_114804,
     author = {Greenspan, Donald},
     title = {On a nine point method for the numerical evaluation of the {Stokes} stream function},
     journal = {Portugaliae mathematica},
     pages = {97--106},
     publisher = {mathdoc},
     volume = {17},
     number = {3},
     year = {1958},
     mrnumber = {0128623},
     zbl = {0084.11504},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1958__17_3_114804/}
}