Ogata, Akio 1927- A solution of the differential equation of longitudinal dispersion in Porous Media / by Akio Ogata and R. B. Banks. -- Washington : United States Government Printing Office, 1961 - 7 p. -- (Geological Survey Professional Paper ; 411-A). Subjects--Topical Terms: GeoquímicaHidrología Universal Decimal Class. No.: 550.4 ; 556