Linear stability of finite-difference approximations on a uniform latitude-longitude grid with Fourier filtering
Williamson, D. L. (1976). Linear stability of finite-difference approximations on a uniform latitude-longitude grid with Fourier filtering. Monthly Weather Review, 104, 31-41. doi:10.1175/1520-0493(1976)104<0031:LSOFDA>2.0.CO;2