TY - JOUR AU - Reader, Joseph C2 - Atoms DA - 2016-12-21 05:12:00 DO - https://doi.org/10.3390/atoms4040031 LA - en PB - Atoms PY - 2016 TI - Spectrum and Energy Levels of Four-Times Ionized Yttrium (Y V UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=921767 ER -