1. [2] Bellin, G., "Ramsey interpreted: A parametric version of Ramsey's theorem", pp. 17--37 in Logic and Computation (Pittsburgh, 1987), vol. 106 of Contemporary Mathematics, American Mathematical Society, Providence, 1990.
2. [4] Erdős, P., A. Hajnal, A. Máté, and R. Rado, Combinatorial Set Theory: Partition Relations for Cardinals, vol. 106 of Studies in Logic and the Foundations of Mathematics, North-Holland Publishing Co., Amsterdam, 1984.
3. [5] Gödel, K., "Über eine bisher noch nicht benützte Erweiterung des finiten Standpunktes", Dialectica, vol. 12 (1958), pp. 280--87.
4. [6] Graham, R. L., B. L. Rothschild, and J. H. Spencer, Ramsey Theory, 2d edition, Wiley-Interscience Series in Discrete Mathematics and Optimization. John Wiley & Sons Inc., New York, 1990.
5. [7] Hirschfeldt, D. R., C. G. Jockusch, Jr., B. Kjos-Hanssen, S. Lempp, and T. A. Slaman, "The strength of some combinatorial principles related to Ramsey's theorem for pairs", pp. 143--62 in Computational Prospects of Infinity, Part II: Presented Talks, edited by C. Chong, Q. Feng, T. A. Slaman, W. H. Woodin, and Y. Yang, Lecture Notes Series, Institute for Mathematical Sciences, National University of Singapore, World Scientific, 2008.