Robuta

https://www.scirp.org/reference/ReferencesPapers?ReferenceID=2235424

Muller, C. (1966) Spherical Harmonics. Springer-Verlag Berlin Heidelberg. - References - Scientific...

Muller, C. (1966) Spherical Harmonics. Springer-Verlag Berlin Heidelberg.

spherical harmonics springer verlag muller berlin heidelberg