Radiative lifetime measurements and oscillator strength determination for transitions in singly ionized praseodymium (Pr II)E. Biémont, P.-H. Lefèbvre, P. Quinet, S. Svanberg and H. L. XuEur. Phys. J. D, 27 1 (2003) 33-41DOI: https://doi.org/10.1140/epjd/e2003-00235-1