Andriesse, C. D.: 1979,Astrophys. Space Sci. 61, 205.
Bressan, A. G., Bertelli, G., and Chiosi, C.: 1981,Astron. Astrophys. 102, 25.
Cannon, C. J. and Thomas, R. N.: 1977,Astrophys. J. 211, 910.
Castor, J. I., Abbott, D. C., and Klein, R. I.: 1975,Astrophys. J. 195, 157.
Chiosi, C.: 1981, in C. Chiosi and R. Stalio (eds.), ‘Effects of Mass Loss on Stellar Evolution’,IAU Colloq. 59, 229.
Chiosi, C. and Olson, G. L.: 1981, preprint.
Chiosi, C. and Summa, C.: 1970,Astrophys. Space Sci. 8, 478.
Chiosi, C., Nasi, E., and Sreenivasan, S. R.: 1978,Astron. Astrophys. 63, 103.
Conti, P. S. and Niemelä, V. A.: 1976,Astrophys. J. 190, L137.
Costero, R., Doazan, V., Stalio, R. and Thomas, R. N.: 1981, in C. Chiosi and R. Stalio (eds.), ‘Effects of Mass Loss on Stellar Evolution’,IAU Colloq. 59, 131
Cox, A. N. and Stewart, J. N.: 1969,Nauch. Informatsii 15, 3.
Snow, T. P.: 1979, in P. S. Conti and C. De Loore (eds.), ‘Mass Loss and Evolution of O-Type Stars’,IAU Symp. 83, 65.
Snow, T. P., Oegerle, W. R., and Polidan, R. S.: 1980a,Astrophys. J. 242, 1077.
Snow, T. P., Wegner, G. A., and Kunasz, P. B.: 1980b,Astrophys. J. 238, 643.
Stothers, R. and Chin, C.-W.: 1979,Astrophys. J. 233, 267.
Vreux, J. M. and Andrillat, Y.: 1979, in P. S. Conti and C. De Loore (eds.), ‘Mass Loss and Evolution of O-Type Stars’,IAU Sump. 83, 23.