1. Int. Astron. Union Symp.,1975
2. Non-periodic Phenomena in Variable Stars (Detre, L., ed.) = Int. Astron. Union Coll. 4, Budapest (1969).
3. Shklovskii, I.S.: Supernovae, Wiley, London (1968).
4. Clark, D.H., Stephenson, F.R.: The Historical Supernovae, Pergamon, Oxford (1977).
5. Brancazio, P.J., Cameron, A.G.W. (eds.): Supernovae and Their Remnants, Gordon and Breach, New York (1969).