van der Pol, Balth. Mathematik und Radioprobleme. (Dutch) Zbl 0029.18103 Simon Stevin, Wis. Natuurk. Tijdschr. 25, 179-198 (1947). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page MSC: 78A97 Mathematically heuristic optics and electromagnetic theory (must also be assigned at least one other classification number in Section 78-XX) Keywords:Electromagnetic theory PDF BibTeX XML Cite \textit{Balth. van der Pol}, Simon Stevin 25, 179--198 (1947; Zbl 0029.18103)