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Пишет shrapnel (![[info]](http://lj.rossia.org/img/userinfo.gif){kind=small} shrapnel)@ 2015-02-10 12:15:00 |
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the use of this letter in other theories
(из старой книжки "E_∞-ring spaces and E_∞-ring spectra")
(из старой книжки "E_∞-ring spaces and E_∞-ring spectra")
