[1] Blair R.: 
On $v$-embedded sets in topological spaces. in ``TOPO 72 - General Topology and its Applications'', Second Pittsburg International Conference, December 18-22, 1972, Lecture Notes in Math., Springer-Verlag, Berlin-Heidelberg-New York, 1974, pp. 46-79. 
MR 0358677[2] Blair R.: 
Spaces in which special sets are $z$-embedded. Canadian Journal of Math. 28 (1976), 673-690. 
MR 0420542 | 
Zbl 0359.54009[4] Blair R., Swardson M.A.: 
Spaces with an Oz Stone-Čech compactification. Topology Appl. 36 (1990), 73-92. 
MR 1062186 | 
Zbl 0721.54018[6] Gillman L., Jerison M.: 
Rings of Continuous Functions. University Series in Higher Math., Van Nostrand, Princeton, 1960. 
MR 0116199 | 
Zbl 0327.46040[7] Henriksen M., Rayburn M.: 
On nearly pseudocompact spaces. Topology Appl. 11 (1980), 161-172. 
MR 0572371 | 
Zbl 0419.54009[8] Mrówka S.: 
Functionals on uniformly closed rings of continuous functions. Fund. Math. 46 (1958), 81-87. 
MR 0100217[11] Weir M.: 
Hewitt-Nachbin Spaces. North-Holland Math. Studies 17, North-Holland and American Elsevier, Amsterdam and New York, 1975. 
MR 0514909 | 
Zbl 0314.54002