Stehle, R. (1997). Magneto-Hydrodynamics of Mass Accretion in Close Binary Systems and Protostars. [Thesis, externally prepared, Sterrenkundig Instituut].
Spruit, H. C., van Paradijs, J. A., Langevelde, H. J., & Waters, L. B. F. M. (1995). Strategies for detecting Thorne-Zytkow objects. Astronomy & Astrophysics, 303, L25-L28.
Martin, E. L., Spruit, H. C., & van Paradijs, J. A. (1994). Energy implications of Li production in X-ray transients. Astronomy & Astrophysics, 291, L43-L46.
