1. U. Abraham, I. Gorelic and I. Juhász, On Jakovlev spaces, Israel Journal of Mathematics 152 (2006), 205–219.
2. A. V. Arhangelskiĭ, Mappings and spaces, Russian Mathematical Surveys 21 (1966), 115–162.
3. A. I. Baškirov, The classification of quotient maps and sequential bicompacta, Doklady Akademii Nauk SSSR 217 (1974), 745–748.
4. A. Blass, Combinatorial cardinal characteristics of the continuum, in Handbook of Set Theory. Vols. 1, 2, 3, Springer, Dordrecht, 2010, pp. 395–489.
5. J. Cancino-Manríquez, M. Hrušák and D. Meza-Alcántara, Countable irresolvable spaces and cardinal invariants, Topology Proceedings 44 (2014), 189–196.