| Editors: | |
| M. Demianski Polish Academy of Sciences Nicolaus Copernicus Astonomical Center Warsaw, Poland |
C. W. F. Everitt Stanford University Stanford, U.S.A. |
Series Editors:
|
|
| Fang Li Zhi University of Arizona, Tucson, U.S.A. |
Remo Ruffini University of Rome "La Sapienza", Rome, Italy |