TY - JOUR AU - D. Beck AU - Richard Zare BT - Computer Physics Communications DA - Jan-10-1969 DO - 10.1016/0010-4655(69)90005-8 PY - 1969 SP - 113 EP - 134 T2 - Computer Physics Communications TI - Relativistic and non-relativistic configuration interaction calculations for atoms having a closed core and two valence spin-orbitals VL - 1 SN - 00104655 ER -