TY - ECHAP AU - Roy Garstang CY - Dordrecht DO - 10.1007/978-94-010-3473-9_23 M1 - International Astronomical Union / Union Astronomique Internationale PB - Springer Netherlands PP - Dordrecht PY - 1968 SN - 978-94-010-3475-3 SP - 143 EP - 152 TI - Transition Probabilities for Forbidden Lines ER -