TY - JOUR AU - Roy Garstang BT - Journal of Physics B: Atomic and Molecular Physics DO - 10.1088/0022-3700/1/5/311 PY - 1968 SP - 847 EP - 849 T2 - Journal of Physics B: Atomic and Molecular Physics TI - Octupole transitions in excitation by electron impact VL - 1 SN - 00223700 ER -