Optimization of auxiliary basis sets for the LEDO expansion and a projection technique for LEDO-DFT. - Andreas W. Götz; Christian Kollmar; Bernd A. Hess (J. Comput. Chem., 2005)

A perturbation-based super-CI approach for the orbital optimization of a CASSCF wave function. - Christian Kollmar; Kantharuban Sivalingam; Benjamin Helmich-Paris; Celestino Angeli; Frank Neese (J. Comput. Chem., 2019)