Publikationen in Zusammenarbeit mit Forschern von Universidade Nova de Lisboa (2)

2014

  1. A study of associations of occupational accidents to number of employees, and to hours worked

    OCCUPATIONAL SAFETY AND HYGIENE II

2004

  1. A note on a modified version of the Poincaré-Birkhoff theorem

    Journal of Differential Equations, Vol. 203, Núm. 1, pp. 55-63