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- [7] DEPENDENCE OF EXCITATION TRANSFER EFFICIENCY IN HELIUM ON GAS TEMPERATURE OPTICS AND SPECTROSCOPY-USSR, 1970, 28 (04): : 349 - &
- [8] CHARACTERISTICS OF A LOW-DENSITY HELIUM PLASMA IN A MAGNETIC FIELD BULLETIN OF THE AMERICAN PHYSICAL SOCIETY, 1970, 15 (03): : 432 - &