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[1] Bikchentaev A. M., Dokl. RAN, 393:4 (2003), 444–447 | MR
[2] Goldstein S., Paszkiewicz A., Proc. Amer. Math. Soc., 116:1 (1992), 175–183 | DOI | MR | Zbl
[3] Marcoux L. W., Murphy G. J., Proc. Amer. Math. Soc., 126:12 (1998), 3597–3605 | DOI | MR | Zbl
[4] Haagerup U., “On convex combinations of unitary operators in $C^*$-algebras”, Mappings of Operator Algebras, Progress in Mathematics, 84, Birkhaüser, Boston–Basel–Berlin, 1990, 1–13 | MR
[5] Halmos P., Kakutani S., Bull. Amer. Math. Soc., 64:1 (1958), 77–78 | DOI | MR | Zbl
[6] Broise M., J. Math. Pures Appl., 46:2 (1967), 299–312 | MR
[7] Fillmore P. A., Canad. J. Math., 18:5 (1966), 897–900 | MR | Zbl
[8] Upmeier H., Math. Z., 176:1 (1981), 21–34 | DOI | MR | Zbl
[9] Thakare N. K., Baliga A. R., Proc. Amer. Math. Soc., 123:4 (1995), 1005–1008 | DOI | MR | Zbl
[10] Leen M., Canad. J. Math., 49:5 (1997), 1188–1205 | MR | Zbl
[11] Takesaki M., Theory of Operator Algebras, V. I, Springer-Verlag, New York–Heidelberg–Berlin, 1979