This is TeXk, Version 3.141592 (Web2C 7.5.6) (format=texsis 2010.6.1) 18 AUG 2018 14:59 %&-line parsing enabled. **muB_erbium_Er.tex (./muB_erbium_Er.tex TeXsis version 2.18 (21 April 2001) format preloaded. [1] ) Output written on muB_erbium_Er.dvi (1 page, 1804 bytes).