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- [12] ABSOLUTE CROSS-SECTIONS, DIFFERENTIAL IN ENERGY AND ANGLE, OF SCATTERED AND EJECTED ELECTRONS PRODUCED BY ELECTRON-IMPACT ON HELIUM BULLETIN OF THE AMERICAN PHYSICAL SOCIETY, 1972, 17 (11): : 1138 - 1138
- [14] DIFFERENTIAL CROSS-SECTIONS FOR ELECTRON-IMPACT IONIZATION OF HELIUM PHYSICAL REVIEW A, 1974, 10 (02): : 499 - 507
- [15] DIFFERENTIAL CROSS-SECTIONS FOR ELECTRON-IMPACT IONIZATION OF HELIUM PHYSICAL REVIEW A, 1976, 13 (02): : 626 - 631