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- [4] TRIPLE-DIFFERENTIAL CROSS-SECTIONS FOR ELECTRON-IMPACT IONIZATION OF HELIUM PHYSICAL REVIEW A, 1977, 16 (02): : 552 - 562
- [5] DIFFERENTIAL CROSS-SECTIONS FOR ELECTRON-IMPACT IONIZATION OF HELIUM PHYSICAL REVIEW A, 1974, 10 (02): : 499 - 507
- [6] DIFFERENTIAL CROSS-SECTIONS FOR ELECTRON-IMPACT IONIZATION OF HELIUM PHYSICAL REVIEW A, 1976, 13 (02): : 626 - 631
- [10] DOUBLY DIFFERENTIAL CROSS-SECTIONS FOR ELECTRON-IMPACT IONIZATION OF HELIUM PHYSICAL REVIEW A, 1985, 32 (05): : 3090 - 3091