SpringerLink (Online service), Figueiredo, D. G. d., do Ó, J. M., & Tomei, C. (2014). Analysis and Topology in Nonlinear Differential Equations: A Tribute to Bernhard Ruf on the Occasion of his 60th Birthday. Springer International Publishing : Imprint: Birkhäuser.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Djairo G de Figueiredo, João Marcos do Ó, και Carlos Tomei. Analysis and Topology in Nonlinear Differential Equations: A Tribute to Bernhard Ruf on the Occasion of His 60th Birthday. Cham: Springer International Publishing : Imprint: Birkhäuser, 2014.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Analysis and Topology in Nonlinear Differential Equations: A Tribute to Bernhard Ruf on the Occasion of His 60th Birthday. Springer International Publishing : Imprint: Birkhäuser, 2014.
