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The Interstellar Medium in Galaxies
innbundet,
1997,
Engelsk,
ISBN 9780792346760
It has been more than five decades ago that Henk van de Hulst predicted the observability of the 21-cm line of neutral hydrogen (HI ). Since then use of the 21-cm line has greatly …
The Interstellar Medium in Galaxies
heftet,
2001,
Engelsk,
ISBN 9781402003790
It has been more than five decades ago that Henk van de Hulst predicted the observability of the 21-cm line of neutral hydrogen (HI ). Since then use of the 21-cm line has greatly …