Reisfeld, Renata.
Lasers and Excited States of Rare Earths / - 1st ed / - Berlin : Springer-Verlag. - p.226 :
3-540-08324-3
Physics
C9B2 / L7
Lasers and Excited States of Rare Earths / - 1st ed / - Berlin : Springer-Verlag. - p.226 :
3-540-08324-3
Physics
C9B2 / L7