Book Pantalony, David (2009)
Altered Sensations: Rudolph Koenig's Acoustical Workshop in Nineteenth-Century Paris. (/isis/citation/CBB001023263/) unapi

Article Pantalony, David (2005)
Rudolph Koenig's Workshop of Sound: Instruments, Theories, and the Debate over Combination Tones. Annals of Science: The History of Science and Technology (p. 57). (/isis/citation/CBB000500117/) unapi

Thesis Pantalony, David Alexander (2002)
Rudolph Koenig (1832--1901), Hermann von Helmholtz (1821--1894) and the birth of modern acoustics. (/isis/citation/CBB001562537/) unapi

Article Brenni, Paolo (1995)
Nineteenth-century French scientific instrument makers, VI. The triumph of experimental acoustics: Albert Marloye (1795-1874) and Rudolph Koenig (1832-1901). Bulletin of the Scientific Instrument Society (pp. 13-17). (/isis/citation/CBB000042921/) unapi

Article Greenslade, Thomas B., Jr. (1992)
The acoustical apparatus of Rudolph Koenig. Physics Teacher (pp. 518-524). (/isis/citation/CBB000045541/) unapi

Article Ullmann, Dieter (1986)
Helmholtz-Koenig-Waetzmann und die Natur der Kombinationstöne. Centaurus: International Magazine of the History of Mathematics, Science, and Technology (pp. 40-52). (/isis/citation/CBB000063105/) unapi