Differential equations and optimal control : proceedings of the Fifth Regional Scientific of Mathematicians held in Żagań, June 1985 : section Differential equations /
Differential equations and optimal control : proceedings of the Fifth Regional Scientific of Mathematicians held in Żagań, June 1985 : section Differential equations / ed. by Michał Kisielewicz, Władysław Sosulski. - Zielona Góra, 1985.
519(061.3)
519(061.3)
