1. Photon bubbles - Overstability in a magnetized atmosphere
2. Cassinelli, J.P., 1985. In: Underhill, A.B., Michalitsianos, A.G. (Eds.), The Origin of Nonradiative Heating/Momentum in Hot Stars. (NASA 2358) 2.
3. Cayrel, R., Steinberg, M. (Eds.), 1976. Physique des Mouvements dans les Atmospheres Stellaires. Colloques Internationaux du C.N.R.S., No. 250; (see therein the papers of Castor, Hearn and Spiegel).
4. Conwell, E.M., 1970. Physics Today, 35.