TY - JOUR AU - R. Falk AU - Gordon Dunn AU - D. Gregory AU - D. Crandall BT - Physical Review A DA - Jan-02-1983 DO - 10.1103/PhysRevA.27.762 PY - 1983 SP - 762 EP - 770 T2 - Physical Review A TI - Measurement of the contribution of excitation autoionization to electron-impact ionization of ions: Ti3+, Zr3+, Hf3+, and Ta3+ VL - 27 SN - 0556-2791 ER -