Short title: Zijlstra et al. (1989)
Authors: Zijlstra, A. A. te Lintel Hekkert, P. Pottasch, S. R. Caswell, J. L. Ratag, M. Habing, H. J.
Journal: Astronomy and Astrophysics (ISSN 0004-6361), vol. 217, no. 1-2, June 1989, p. 157-178. Research supported by ZWO.
Bibcode:
1989A&A...217..157Z