Sameshima, H.
Yoshii, Y.
Kawara, K.
Article Title: CHEMICAL EVOLUTION OF THE UNIVERSE AT 0.7 < z < 1.6 DERIVED FROM ABUNDANCE DIAGNOSTICS OF THE BROAD-LINE REGION OF QUASARS
Journal Title: The Astrophysical Journal
Article Type: paper
Copyright Information: © 2017. The American Astronomical Society. All rights reserved.
Publication dates
Date Received: 2016-01-22
Date Accepted: 2016-11-17
Online publication date: 2017-01-13