"Tutorial 2: Numerical Solutions of ODE's"(PDF). Stanford University-Dept of Civil and Environmental Engineering, Environmental Fluid Mechanics Lab. 2002-08-19. Archived from the original(PDF) on 2010-07-20. Retrieved 2012-02-26.
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"Tutorial 2: Numerical Solutions of ODE's"(PDF). Stanford University-Dept of Civil and Environmental Engineering, Environmental Fluid Mechanics Lab. 2002-08-19. Archived from the original(PDF) on 2010-07-20. Retrieved 2012-02-26.