M. Sc.  Diplom in Physics
                             University at Bonn, Germany, 1975

                             Ph.D.  Physics/Astronomy
                             University at Bonn and Max-Planck-Institut für Radioastronomie
                             Bonn, Germany, 1978
 

Present Position:

1992-                   Professor, Department of Physics and Astronomy, York University
                            Toronto, Canada  

Previous Positions:

1983-1992          Research Associate at the Harvard-Smithsonian Center for
                          Astrophysics, Cambridge, MA, U.S.A.

1986-1992          Lecturer on Astronomy at Harvard University, Cambridge, MA, U.S.A.

1980-1982          Visiting Scientist at the Massachusetts Institute of Technology,
                          Cambridge, MA, U.S.A.

1978-1980          Research Scientist at the Max-Planck-Institut für Radioastronomie,
                           Bonn, Germany

Honours:

1979                   Otto Hahn Medal, Max Planck Society, Germany

2005                   Distinguished Research Professor

National and International Responsibilities (last six years):

1990-                Member, Science Objective Group (SOC) of the Russian space VLBI project RADIOASTRON

1997-2000        Chair, Radio Astronomy Subcommittee of the Canadian Astronomical Society (CASCA)

1997-2001        Member, Space Astronomy Committee (JSSA)

1998-2005       Member, VSOP (Space VLBI)  Science Review Committee
 
2002-               Member, Canadian Square-Kilometer-Array Science Advisory Committee

2004-2005       CAP Lecturer (CAP: Canadian Association of Physicists, invited lecturer at Canadian universities)

2005-               Member, Canadian Square-Kilometer-Array Board of Directors

2005-               Chair,  Canadian Square-Kilometer-Array Science Advisory Committee

Publications: