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doi.org
Douglas Jr., Jim, Alternating direction methods for three space variables, Numerische Mathematik, 1962, 4: 41–63, ISSN 0029-599X, doi:10.1007/BF01386295.
Chang, M. J.; Chow, L. C.; Chang, W. S., Improved alternating-direction implicit method for solving transient three-dimensional heat diffusion problems, Numerical Heat Transfer, Part B: Fundamentals, 1991, 19 (1): 69–84, ISSN 1040-7790, doi:10.1080/10407799108944957.
worldcat.org
Douglas Jr., Jim, Alternating direction methods for three space variables, Numerische Mathematik, 1962, 4: 41–63, ISSN 0029-599X, doi:10.1007/BF01386295.
Chang, M. J.; Chow, L. C.; Chang, W. S., Improved alternating-direction implicit method for solving transient three-dimensional heat diffusion problems, Numerical Heat Transfer, Part B: Fundamentals, 1991, 19 (1): 69–84, ISSN 1040-7790, doi:10.1080/10407799108944957.