Kappraff, Jay Ancient harmonic law. (English) Zbl 1274.00022 Symmetry Cult. Sci. 21, No. 1-3, 207-228 (2010). MSC: 00A65 PDFBibTeX XMLCite \textit{J. Kappraff}, Symmetry Cult. Sci. 21, No. 1--3, 207--228 (2010; Zbl 1274.00022)
Kappraff, J.; Petoukhov, S. Symmetries, generalized numbers and harmonic laws in matrix genetics. (English) Zbl 1274.05053 Symmetry Cult. Sci. 20, No. 1-4, 23-49 (2009). MSC: 05B20 05C50 PDFBibTeX XMLCite \textit{J. Kappraff} and \textit{S. Petoukhov}, Symmetry Cult. Sci. 20, No. 1--4, 23--49 (2009; Zbl 1274.05053)