[1] Arhangel'skii A.V.: 
Bicompact sets and the topology of spaces. Dokl. Akad. Nauk SSSR 150 (1963), 9--12; MR MR0150733 (27 \#720). 
MR 0150733[2] Arhangel'skii A.V.: 
Two types of remainders of topological groups. Comment. Math. Univ. Carolin. 49 (2008), no. 1, 119--126. 
MR 2433629[3] Arhangel'skii A.V.: 
The Baire property in remainders of topological groups and other results. Comment. Math. Univ. Carolin. 50 (2009), no. 2, 273--279. 
MR 2537836[4] Basile D., van Mill J.: 
A homogeneous space of point-countable type but not of countable type. Comment. Math. Univ. Carolin. 48 (2007), 459--463. 
MR 2374127[8] Gerlits J., Juhász I., Szentmiklóssy Z.: 
Two improvements on Tkačenko's addition theorem. Comment. Math. Univ. Carolin. 46 (2005), no. 4, 705--710; MR MR2259500 (2008f:54035). 
MR 2259500 | 
Zbl 1121.54041[10] Ismail M.: 
Cardinal functions of homogeneous spaces and topological groups. Math. Japon. 26 (1981), no. 6, 635--646; MR MR649371 (83g:54003). 
MR 0649371 | 
Zbl 0479.54003[11] Juhász I.: 
Cardinal functions in topology --- ten years later. second ed., Mathematical Centre Tracts, 123, Mathematisch Centrum, Amsterdam, 1980; MR MR 576927 (82a:54002). 
MR 0576927[12] Šapirovskii B.E.: 
$\pi $-character and $\pi $-weight in bicompacta. Dokl. Akad. Nauk SSSR 223 (1975), no. 4, 799--802; MR MR 04110632 (53 \#14380). 
MR 0410632