Raan, A. F. J. v. (1973). Excitation processes in helium: Electron-impact excitation and collisional transfer of excitation energy. s.n.].
Dyfyniad Arddull ChicagoRaan, Anthony Franciscus Joannes van. Excitation Processes in Helium: Electron-impact Excitation and Collisional Transfer of Excitation Energy. [S.l.: s.n.], 1973.
Dyfyniad MLARaan, Anthony Franciscus Joannes van. Excitation Processes in Helium: Electron-impact Excitation and Collisional Transfer of Excitation Energy. s.n.], 1973.
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