HELIUM
atmospheric: g52 7/8 8
discovery: g65 11/22 5; g30 5/28 548
discussion: g30 5/28 548
supercooled: w71 292
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HELIUM
atmospheric: g52 7/8 8
discovery: g65 11/22 5; g30 5/28 548
discussion: g30 5/28 548
supercooled: w71 292