Constraining the shielded wind scenario in PG 2112+059 Saez, C. ; Brandt, W. N. ; Bauer, F. E. ; Hamann, F. ; Chartas, G. ; Gallagher, S. C. Abstract Publication: Astronomische Nachrichten Pub Date: May 2016 DOI: 10.1002/asna.201612344 Bibcode: 2016AN....337..541S