A 3\times10$^9$ M$_solar$ Black Hole in the Quasar SDSS J1148+5251 at z=6.41
\apjl 587 (2003) L15-L18-L15-L18
Comparing peanut-shaped `bulges' to N-body simulations and orbital calculations
Astrophysics and Space Science Springer Nature 284:2 (2003) 753-756
The mass of the neutron star in Vela X-1 and tidally induced non-radial oscillations in GP Vel
Astronomy & Astrophysics EDP Sciences 401:1 (2003) 313-323
On the Spiral Structure of NGC 2915 and Dark Matter
The Astrophysical Journal American Astronomical Society 586:1 (2003) 152-169