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Article Contents

ABSTRACT

1.INTRODUCTION

2.THE STRUCTURE OF THE BROAD-LINE REGION AND TORUS

3.THE KINEMATICS OF THE BLR AND TORUS

3.1.Determining the Direction of Motion

3.2.The overall velocity field of the BLR

4.ORIENTATION EFFECTS

5.THE ACCURACY OF AGN BLACK HOLE MASS DETERMINATIONS

6.WHAT DRIVES BLR MOTIONS?

7.CONCLUSIONS AND UNSOLVED PROBLEMS

REFERENCES