1. E.H. Bishop, S. Kolflat, L.R. Mack, J.A. Scanlan, Convective heat transfer between concentric spheres, in Proceedings of the heat transfer and fluidmechanics institute, Stanford University Press, Palo Alto, CA, USA, 1964.
2. Heat transfer by natural convection between concentric spheres;Bishop;Int. J. Heat Mass Transfer,1966
3. Natural convection between concentric spheres at low Rayleigh numbers;Mack;Int. J. Heat Mass Transfer,1968
4. Natural convection heat transfer between concentric spheres;Scanlan;Int. J. Heat Mass Transfer,1970
5. Natural convection flow patterns in spherical annuli;Yin;Int. J. Heat Mass Transfer,1973