One-phonon octupole vibrational states in 211At, 212Rn, 213Fr and 214Ra with N = 126 J. K. Hwang, J. H. Hamilton and A. V. Ramayya Eur. Phys. J. A, 49 12 (2013) 152 Published online: 12 December 2013 DOI: 10.1140/epja/i2013-13152-2