Zdroj: |
Richard E. Williamson: Introduction to differential equations and dynamical systems LC (Names), cit. 19. 1. 2021 Williamson, Richard E. - Crowell, Richard H. - Trotter, Hale F.: Calculus of vector functions, 1968 www(Obituary. Richard "Dick" E. Williamson of Hanover, New Hampshire), cit. 19. 1. 2021 www(isni), cit. 19. 1. 2021 |