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Bibliography

[1]

J. M. G. Fell, A Hausdorff topology for the closed subsets of a locally compact non-Hausdorff space, Proc. Amer. Math. Soc. 13 (1962), 472-476. MR 0139135 (25:2573)

[2]

J. L. Kelley, General topology, Van Nostrand, New York, 1955. MR 0070144 (16:1136c)

[3]

C. Kuratowski, Topologie. I, 3rd ed., Monagrafie Mat. 20, Warsaw, 1952.

[4]

G. W. Mackey, Borel structures in groups and their duals, Trans. Amer. Math. Soc. 85 (1957), 134-165. MR 0089999 (19:752b)