R523.112 Tuv V Tuve, Merle A Velocity structures in hydrogen profiles; a sky atlas of neutral hydrogen emission [by] merle A. Tuve and soren Lucanger. Washinton,D.C.,Departamentof Terrestrial Magnetism ,Carnegie Institution of Washinton [1973] ix, 178 p.ilus., gráficos. 28cm. (Carnegie institution of washungton publication ,no.630)