van der Pol, Balthasar Bremmer, H. (ed.); Bouwkamp, C. J. (ed.); Casimir, H. B. G. (ed.) Selected scientific papers. Vol. I, II. (English) Zbl 0100.39405 Amsterdam: North-Holland Publishing Company. XIII, 1339 p. (1960). PDFBibTeX XML
van der Pol, Balth; Levelt, A. H. M. On the propagation of a discontinuous electromagnetic wave. (English) Zbl 0093.42301 Nederl. Akad. Wet., Proc., Ser. A 63, 254-265 (1960). PDFBibTeX XMLCite \textit{B. van der Pol} and \textit{A. H. M. Levelt}, Nederl. Akad. Wet., Proc., Ser. A 63, 254--265 (1960; Zbl 0093.42301)
van der Pol, Balth. On series of the reciprocals of the Jacobian theta functions. (English) Zbl 0091.07802 Nederl. Akad. Wet., Proc., Ser. A 63, 107-114 (1960). PDFBibTeX XMLCite \textit{Balth. van der Pol}, Nederl. Akad. Wet., Proc., Ser. A 63, 107--114 (1960; Zbl 0091.07802)