W. Mittig, H. Savajols, D. Baiborodin, J.M. Casandjian, C.E. Demonchy, P. Roussel-Chomaz, F. Sarazin, Z. Dlouhý, J. Mrazek, A.V. Belozyorov, S.M. Lukyanov, Y.E. Penionzhkevich, N. Alamanos, A. Drouart, A. Gillibert, C. Jouanne, V. Lapoux, E. Pollacco, A. Korichi, J.A. Scarpaci,
Shape coexistence and the N = 20 shell closure far from stability by inelastic scattering European Physical Journal A. ,vol. 15, pp. 157- 160 ,(2002) ,
10.1140/EPJA/I2001-10245-5