TY - BOOK ID - 6814409 TI - Lasers and excited states of rare earths AU - Reisfeld, Renata. AU - JORGENSEN, Christian K. PY - 1977 VL - 1 SN - 3540083243 0387083243 3642666981 3642666965 9783540083245 PB - Berlin : Springer, DB - UniCat KW - 546.65 KW - 539.184 KW - #WSCH:AAS1 KW - Rare earths in general KW - Internal mechanics of atoms. Energy levels and structure. Excited states of atoms KW - 539.184 Internal mechanics of atoms. Energy levels and structure. Excited states of atoms KW - 546.65 Rare earths in general UR - https://www.unicat.be/uniCat?func=search&query=sysid:6814409 AB - ER -