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 The e.ffect of simultaneous doping . of Pll in TJ..Q,6  htyer of 'T'lJ-xPb. Ba2Ca2Co_309- o s perconductors.
<strong>Ibn AL- Haitham Journal For Pure and Applied Science</strong>, [S.l.], v. 21, n. 3, p. 27-38, sep. 2017.
ISSN 2521-3407.
Available at: &lt;<a href="http://jih.uobaghdad.edu.iq/index.php/j/article/view/1402" target="_new">http://jih.uobaghdad.edu.iq/index.php/j/article/view/1402</a>&gt;. Date accessed: 22 nov. 2019.