Towers in [ω]ω and ωω

Balcar, 1980, The space of ultrafilters on N covered by nowhere dense sets, Fund. Math., 110, 11, 10.4064/fm-110-1-11-24

B. Balcar, Private communication, 1982

Baumgartner, 1983, Iterated forcing, 87

Baumgartner, 1985, Adjoining dominating functions, J. Symbolic Logic, 50, 94, 10.2307/2273792

Dordal, 1987, A model in which the Base Matrix Tree cannot have cofinal branches, J. Symbolic Logic, 52, 651, 10.2307/2274354

van Douwen, 1984, The integers and topology

Easton, 1970, Powers of regular cardinals, Ann. Math. Logic, 1, 139, 10.1016/0003-4843(70)90012-4

Hausdorff, 1936, Summen von ℵ1 Mengen, Fund. Math., 2, 241, 10.4064/fm-26-1-241-255

Jech, 1978

Kamo, 1986, Limits on P(ω)⧸finite, J. Math. Soc. Japan, 38, 85, 10.2969/jmsj/03810085

Kunen, 1980

Kunen, 1979, Between Martin's axiom and Souslin's hypothesis, Fund. Math., 102, 173, 10.4064/fm-102-3-173-181

Rothberger, 1948, On some properties of Hausdorff and of Sierpinski, Fund. Math., 35, 29, 10.4064/fm-35-1-29-46

Solomon, 1977, Families of sets and functions, Czeckoslovak Math. J., 27, 556, 10.21136/CMJ.1977.101493