Astron. Astrophys. 324, 523-533 (1997)

Acknowledgements

This paper is dedicated to my parents Francesco and Grazia. It is a great pleasure to thank the referee, Daniel Pfenniger, whose papers about softening have represented an invaluable source of inspiration for both developing and maturing my ideas. In addition, I am very grateful to Francoise Combes and Lars Hernquist for strong encouragement and valuable suggestions on a previous draft of this paper. I am also very grateful to John Black, Daniel Friedli, Cathy Horellou, Henry Kandrup, Richard Miller, Juan Muzzio, Masafumi Noguchi and Jan Palou for strong encouragement and useful discussions. The financial support of the Swedish Natural Science Research Council is greatly appreciated.

© European Southern Observatory (ESO) 1997

Online publication: May 26, 1998

helpdesk.link@springer.de