The structure of the inverse image of a point in a space under the natural map onto its absolute
V. I. Malykhin

References
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2.	A. V. Arkhangelskii, V. I. Ponomarev, Osnovy obschei topologii v zadachakh i uprazhneniyakh, Nauka, M., 1974
3.	I. I. Parovichenko, “Ob odnom universalnom bikompakte vesa $\aleph$”, DAN, 150:1 (1963), 36–39