revista cientifica: vol 243 of The Astrophysical Journal, num 1 part 1 (1981). Pages 1-344

  Editorial: The Astrophysical Journal. Fecha Edición: 1981. Estado: BIEN. Pequeños desperfectos en cubierta.Formato tapa blanda 21x28 cm, 344 páginas, idioma: inglés. Published by the university of Chicago Press for American Astronomical Society. Printed in USA.content: -Relic neutrinos and the density of the universe-The dynamics of the clusters of galaxies A2029-X-Ray observations of six bl lacertae fields-Spectroscopy of neutral-colored QSO candidates-Optical spectrophotometryof narrow-line radio galaxiesetc.

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