1. IAU Symp.,1984
2. IAU Symp.,1988
3. Saas-Fee advanced course;R.D. Blandford,1990
4. Parsec-scale Radio Jets (Zensus, J.A., Pearson, T.J., eds.), Cambridge: University Press (1991).
5. Superluminal Radio Sources (Zensus, J.A., Pearson, T.J., eds.), Cambridge: University Press (1987).