1. Partition theorems for spaces of variable words;Bergelson;Proc. London Math. Soc.,1994
2. Sums of idempotents in βN;Berglund;Semigroup Forum,1992
3. Groups with only resolvable group topologies;Comfort;Proc. Amer. Math. Soc.,1994
4. Ultrafilters and undecomposable spaces;El'kin;Vestn. Mosk. Gos. Univ.,1969
5. Consequences of Martin's Axiom;Fremlin,1984