1. R. Beckmann, F. Karsch and D.E. Miller, “Bose-Einstein Condensation of a Relativistic Gas in d-Dimensions,” Phys.Rev.Lett., to be published
2. R. Beckmann, F. Karsch and D.E. Miller, “Analysis of the Critical Structure of Bose-Einstein Condensation for a Relativistic Gas in d-Dimensions,” to appear; see also R. Beckmann, “Thermodynamische Eigenschaften hadronischer Materie für relativistische Gasmodelle in mehreren Dimensionen,” Diplomarbeit, Universität Bielefeld, 1979
3. A. Einstein, Sitzber. kgl. preuss. Akad. Wiss., 261 (1924), 18 (1925); also in the book, Albert Einstein, Sein Einfluß auf Physik, Philosophie und Politik, P.C. Aichelburg and R.U. Sexl (Eds.) (Vieweg, Braunschweig, 1979)
4. F. London, Phys. Rev. 54, 947 (1938);
5. F. London, J. Phys. Chem. 43, 49 (1939); for a general reference see F. London, Superfluids, Vol. I, II (Dover, New York, 1950, 1954)