Section 3.2 References
O'Connor, J. J., and Robertson, E. F. (2005). Richard Rado - Biography. Retrieved October 18, 2020, from https://mathshistory.st-andrews.ac.uk/Biographies/Rado_Richard/
O'Connor, J. J., and Robertson, E. F. (1998). Issai Schur - Biography. Retrieved October 18, 2020, from https://mathshistory.st-andrews.ac.uk/Biographies/Schur/
O'Connor, J. J., and Robertson, E. F. (2009). Bartel van der Waerden - Biography. Retrieved October 09, 2020, from https://mathshistory.st-andrews.ac.uk/Biographies/Van_der_Waerden/
O'Connor, J. J., and Robertson, E. F. (2003). Frank Ramsey - Biography. Retrieved September 20, 2020, from https://mathshistory.st-andrews.ac.uk/Biographies/Ramsey/
Landman, B. M., and Robertson, A. (2015). Ramsey theory on the integers. Providence, RI: AMS, American Mathematical Society.
Soifer, A. (2009). The mathematical coloring book: Mathematics of coloring and the colorful life of its creators. New York, NY: Springer.
Alfred W. Hales. (2020, April 13). Retrieved November 09, 2020, from https://en.wikipedia.org/wiki/Alfred_W._Hales
Hales-Jewett theorem. (2020, August 12). Retrieved November 09, 2020, from https://en.wikipedia.org/wiki/Hales%E2%80%93Jewett_theorem
Jungic, V. (n.d.). Introduction to Ramsey Theory: Lecture notes for undergraduate course. Retrieved November 09, 2020, from http://www.sfu.ca/~vjungic/RamseyNotes/sec_HJ2.html