TY  - RPRT
TI  - Approximations for double-beta-decay formulas.
AU  - M Doi
AU  - T Kotani
AU  - E Takasugi
PY  - 1988
DO  - 10.1103/physrevc.37.2104
UR  - https://pubmed.ncbi.nlm.nih.gov/9954677/
ID  - 9954677
ER  -