1. Y. Magarshak, Sci. Isr. Technol. Adv. 7(1/2), 134–150 (2006).
2. I. Levine, Quantum Chemistry (Prentice Hall, Englewood Cliffs, 1999).
3. D. Mendelejeff, “On the Relationship of the Properties of the Elements to Their Atomic Weights,” Ztschr. Chem. 12, 405–406 (1869).
4. Y. Magarshak and J. Malinsky, Nature 360, 114–115 (1992).
5. F. Hund, Linienspektren und Periodisches System der Elemente (Springer-Verlag, Berlin, 1927).