Publikationen in Zusammenarbeit mit Forschern von Universidad de Salamanca (4)

1984

  1. Another method for the obtention of first integrals of dynamical systems

    Lettere al Nuovo Cimento, Vol. 39, Núm. 14, pp. 315-318

  2. On Szebehely's equation and its connection with Dainelly's-Whittaker's equations

    Celestial Mechanics, Vol. 33, Núm. 1, pp. 85-97

1982

  1. Symmetries of differential equations. IV

    Journal of Mathematical Physics, Vol. 24, Núm. 8, pp. 2006-2021