[2] P. Fletcher W. Lindgren: 
Quasi-Uniform Spaces. Lecture Notes in Pure and Applied Mathematics, V. 77, Marcel Dekker, New York 1982. 
MR 0660063[3] R. E. Hodel: 
Extensions of Metгization Theorems to Higher Cardinality. Fund. Math., V. 87(1975), pp. 219-229. 
MR 0372806[4] I. Juhasz: 
Cardinal Functions in Topology. Math. Centeг Tracts, No. 34, Math. Centrum, Amsterdam, 1971. 
MR 0340021 | 
Zbl 0224.54004[5] I. Juhasz: 
Cardinal Functions in Topology. Ten Years Later, Math. Center Tracts, No. 123, Math. Centrum, Amsteгdam, 1980. 
MR 0576927 | 
Zbl 0479.54001[6] J. C. Kelly: 
Bitopological Spaces. Proc. London Math. Soc., Ser. 3, V. 13 (1963), pp. 71-89. 
MR 0143169 | 
Zbl 0107.16401[7] R. Kopperman: 
All Topologies Come from Generalized Metrics. American Mathematical Monthly 95 (1988), pp. 89-97. 
MR 0935419 | 
Zbl 0653.54020[8] R. Kopperman P. R. Meyer: 
An Internal Characterization of Uniform Weight Topology and its Applications. 31 (1989), 253 - 258. 
MR 0997492[9] E. P. Lane: 
Bitopological Spaces and Quasi-Uniform Spaces. Proc. London Math. Soc., Ser. З, V. 17 (1967), pp. 241-256. 
MR 0205221 | 
Zbl 0152.21101[10] S. Mrowka: 
Remark on Locally Finite Ѕystems. Bull. Acad. Polon. Ѕci., Cl. III, V. 5 (1957), pp. 129-132. 
MR 0087083