Evolution of 2+ γ wave functions and gamma-stiffness in well-deformed rare-earth nucleiCh. Hinke, R. Krücken, R. F Casten, V. Werner and N. V. ZamfirEur. Phys. J. A, 30 2 (2006) 357-367DOI: https://doi.org/10.1140/epja/i2006-10129-2