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PEOPLE
Peter A
Publications in Math-Net.Ru
Absorption spectra of Er
$^{3+}$
ions in Li
$_6$
Y(BO
$_3$
)
$_3$
crystals
Pisma v Zhurnal Tekhnicheskoi Fiziki
,
39
:9 (2013),
41–46
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Steklov Math. Inst. of RAS
, 2025