Philipp Lenard
1978 / Philipp Lenard and the Photoelectric Effect, 1889-1911 / Bruce R. Wheaton / Historical Studies in the Physical Sciences 9 (1978) p. 299 [doi]
1999 / Heinrich Hertz and Philipp Lenard: Two Distinguished Physicists, Two Disparate Men / Joseph F. Mulligan / Physics in Perspective 1 (1999) p. 345 [doi]