Generalized totally disconnectedness. Dorsett, Charles — 1995 International Journal of Mathematics and Mathematical Sciences
Semi separation axioms and hyperspaces. Dorsett, Charles — 1981 International Journal of Mathematics and Mathematical Sciences
Connectivity properties in hyperspaces and product spaces Charles Dorsett — 1984 Fundamenta Mathematicae
New characterizations of regular open sets, semi-regular sets, and extremally disconnectedness Charles Dorsett — 1995 Mathematica Slovaca
New Characterizations and Properties of Almost-open and Almost-closed Functions Charles Dorsett — 1988 Publications de l'Institut Mathématique
Additional characterizations of the T 2 and weaker separation axioms Charles Dorsett — 2012 Matematički Vesnik