[[F] FILIPCZAK, M.: σ-ideals, topologies and multiplication, Bull. Soc. Sci. Lett. Ł´od´z 52 (2002), 11-16.]Search in Google Scholar
[[FT1] FILIPCZAK, M.-TEREPETA, M.: On continuity concerned with ψ-density topologies, Tatra Mt. Math. Publ. 34 (2006), 29-36.]Search in Google Scholar
[[FT2] FILIPCZAK, M.-TEREPETA, M.: ψ-continuous functions, Rend. Circ. Mat. Palermo 58 (2009), 245-255.10.1007/s12215-009-0018-y]Search in Google Scholar
[[K] KNOX, M. L.: A characterization of rings of density continuous functions, Real Anal. Exchange 31 (2005), 165-177.10.14321/realanalexch.31.1.0165]Search in Google Scholar
[[TW-B] TEREPETA, M.-WAGNER-BOJAKOWSKA, E.: ψ-density topology, Rend. Circ. Mat. Palermo 48 (1999), 451-476.10.1007/BF02844336]Search in Google Scholar