[1] J. BÉNABOU:
Treillis locaux et paratopologies. Séminaire Ehresmann 1 (1957-58), exposé 2.
MR 0121774
[2] B. BANASCHEWSKI C. J. MULVEY:
Stone-Čech compactification of locales, I. Houston J. Math. 6 (1980), 301-312.
MR 0597771
[3] C. H. DOWKER D. PAPERT:
Quotient frames and subspaces. Proc. Lond. Math. Soc. 16 (1966), 275-296.
MR 0202648
[4] C. H. DOWKER D. PAPERT:
On Urysohn's lemma. General Topology and its relations to Modern Analysis and Algebra II, Prague 1966, 111-114.
MR 0238744
[5] C. H. DOWKER D. STRAUSS:
Sums in the category of frames. Houston J. Math. 3 (1976), 17-32.
MR 0442900
[8] P. T. JOHNSTONE:
Tychonoff's theorem without the axiom of ohoice. Fund. Math. 113 (1981), 21-35.
MR 0641111
[9] A. JOYAL M. TIERNEY:
An extension of the Galois Theory of Grothendieck. preprint.
MR 0756176
[10] J. L. KELLEY:
The Tychonoff product theorem implies the axiom of ohoice. Fund. Math. 37 (1950), 75-76.
MR 0039982
[11] H. SIMMONS:
A framework for topology. Proc. Wroclaw Logic Conference 1977, North-Holland, 1978, 239-251.
MR 0519819
[12] A. N. TYCHONOFF:
Über die topologische Erweiterung von Räumen. Math. Ann. 102 (1930), 544-561.
MR 1512595