TY  - RPRT
TI  - Measuring potential fertility through null segments: an exploratory analysis.
AU  - R G Potter
AU  - C J Mode
AU  - M G Soyka
AU  - R C Avery
PY  - 1979
DO  - 10.1080/19485565.1979.9988389
UR  - https://pubmed.ncbi.nlm.nih.gov/553297/
ID  - 553297
ER  -