[1] J. Novák:
On convergence spaces and their sequential envelopes. Czech. Math. Journ. 15 (90) 1965, p. 74-100.
MR 0175083
[2] J. Novák:
Über die eindeutigen stetigen Erweiterungen stetiger Funktionen. Czech. Math. Journ. 8 (83) 1958, p. 344-355.
MR 0100826
[3] V. Koutník:
On sequentially regular convergence spaces. Czech. Math. Journ. 17 (92) 1967, 232-247.
MR 0215277