 Quantisierung als Eigenwertproblem (Erste Mitteilung) by Erwin Schrödinger

By Erwin Schrödinger. Annalen der Physik 384(4), 361–376 (series volume 79), 1926; DOI 10.1002/andp.19263840404.

Cited passages: pp. 361–363, inspected in the University of Tübingen primary scan. Original publication and university hosting are distinct.