1. Nonmetrizable topological dynamics and Ramsey theory;Bergelson;Trans. Am. Math. Soc.,1990
2. Ramsey theory in noncommutative semigroups;Bergelson;Trans. Am. Math. Soc.,1992
3. A new and stronger central sets theorem;De;Fundam. Math.,2008
4. Distal transformation groups;Ellis;Pac. J. Math.,1958
5. Recurrence in Ergodic Theory and Combinatorial Number Theory;Furstenberg,1981