Author talk:Walthère Victor Spring

Biographical sources

 * (No. 2115) The Color of Water, by John H. Lienhard, Engines of Our Ingenuity, College of Engineering, The University of Houston
 * Walthère Spring (1848-1911), biography (French)
 * Bestor wiki-biography (Belgian)
 * Spring, Walthère Victor, Complete Dictionary of Scientific Biography via encyclopedia.com
 * Famous Scholars at the University of Liege, University of Liege
 * Internet Archive: Non-English works.