The Bulge-Disk Orthogonal Decoupling in Galaxies: NGC 4698**Based on observations carried out at ESO, La Silla, Chile (ESO N. 60.A-0800).
The Astrophysical Journal American Astronomical Society 519:2 (1999) l127-l130
On Nonshearing Magnetic Configurations in Differentially Rotating Disks
The Astrophysical Journal American Astronomical Society 518:2 (1999) 784-787