TY  - RPRT
TI  - Multipolar expansions for the empty-lattice problem.
AU  - RG Brown
AU  - M Ciftan
PY  - 1989
DO  - 10.1103/physrevb.39.3543
UR  - https://pubmed.ncbi.nlm.nih.gov/9948669/
ID  - 9948669
ER  -