TY - JOUR AU - Kramida, Alexander C2 - Computer Physics Communications DA - 2011-02-01 05:02:00 DO - https://doi.org/10.1016/j.cpc.2010.09.019 LA - en M1 - 182 PB - Computer Physics Communications PY - 2011 TI - The program LOPT for least-squares optimization of energy levels UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=904527 ER -