You may also wish to search for items by Ruttink, P. and Ruttink.
Only one matching reference was found.
Chang, T.C.; Hsue, C.S.; Ruttink, P.A.; Schwarz, W.H.E., Compromize orbital calculations by an improved MC-GBT approach. Core excited states of HF, Chem. Phys., 1985, 93, 405-418. [all data]