Britt Friis-Jensen

The spin-coupled description of phenylenedimethylidene

D. L. Cooper, S. Rettrup, P. Karadakov, 1998 .

Indexing scheme for classes of ?N; partitions ofN

C. R. Sarma, S. Rettrup, Britt Friis-Jensen, 1997 .

Normalization of projected spin eigenfunctions

D. L. Cooper, S. Rettrup, Britt Friis-Jensen, 1997 .

Spin‐free approach for evaluation of electronic matrix elements using character operators of ℒN

S. Rettrup, Britt Friis-Jensen, 1996 .