@Article{Plichko2006, author = "Plichko, Anatolij", title = "Proof of Milman's theorem on extension of M-basic sequence", journal = "Opuscula Math.", year = "2006", volume = "26", number = "1", pages = "127--129", doi = "http://dx.doi.org/10.7494/OpMath.2006.26.1.127", url = "http://dx.doi.org/10.7494/OpMath.2006.26.1.127", abstract = "We prove Milman's theorem on the extension, in a given direction, of M-basic sequence to M-basis in a separable Banach space.", keywords = "quasicomplement, Markushevich basis", issn = "1232-9274" }