Wechselwirkung neutraler Atome und homöopolare Bindung nach der Quantenmechanik in Zeitschrift für Physik 44, 1927. pp. 455-473 (Heitler and London). Zur quantenmechanik einfacher bewegungstypen in Zeitschrift für Physik, Volume 44, 1927. pp. 326–352 (Kennard) [FULL VOLUME]
Berlin: Julius Springer. 1st Edition. FIRST EDITION OF THE FIRST APPLICATION OF WAVE MECHANICS TO THE THEORY OF CHEMICAL BONDING. "In 1927 the Heitler-London theory was formulated which for the first time enabled the calculation of bonding properties of the hydrogen molecule based on quantum mechanical considerations. Specifically, Walter Heitler..... More