The blue supergiant Sher 25 and its intriguing hourglass nebula
(2008)
Cosmological Physics with Black Holes (and Possibly White Dwarfs)
(2008)
The VLT FLAMES Survey of Massive Stars: Rotation and Nitrogen Enrichment as the Key to Understanding Massive Star Evolution
The Astrophysical Journal American Astronomical Society 676:1 (2008) l29-l32