1. Bartoszyński, T., Judah, H.: Set Theory: On the Structure of the Real Line. A K Peters, Wellesley (1995)
2. Blass, A.: Combinatorial cardinal characteristics of the continuum. In: Foreman, M., Kanamori, A. (eds.) Handbook of Set Theory, pp. 395–490. Springer, New York (2010)
3. Brendle, J., Shelah, S.: Ultrafilters on $$\omega $$ ω -their ideals and their cardinal characteristics. Trans. Am. Math. Soc. 351, 2643–2674 (1999). arXiv:math.LO/9710217
4. Cohen, S., Shelah, S.: On a parallel of random real forcing for inaccessible cardinals (2016) arXiv:1603.08362 [math.LO]
5. Cummings, J., Shelah, S.: Cardinal invariants above the continuum. Ann. Pure Appl. Log. 75, 251–268 (1995). arXiv:math.LO/9509228