Bopp, F., & Kleinpoppen, H. (1969). Physics of the one- and two-electron atoms: Proceedings of the Arnold Sommerfeld Centennial Memorial Meeting and of the International Symposium on the Physics of the One- and Two-Electron Atoms, Munich, 10-14 September 1968. North-Holland.
Παραπομπή σε μορφή Chicago (17η εκδ.)Bopp, F., και H. Kleinpoppen. Physics of the One- and Two-electron Atoms: Proceedings of the Arnold Sommerfeld Centennial Memorial Meeting and of the International Symposium on the Physics of the One- and Two-Electron Atoms, Munich, 10-14 September 1968. Amsterdam: North-Holland, 1969.
Παραπομπή σε μορφή MLA (8th εκδ.)Bopp, F., και H. Kleinpoppen. Physics of the One- and Two-electron Atoms: Proceedings of the Arnold Sommerfeld Centennial Memorial Meeting and of the International Symposium on the Physics of the One- and Two-Electron Atoms, Munich, 10-14 September 1968. North-Holland, 1969.
