TY  - RPRT
TI  - Activity group parameters.
AU  - C Semonsky
AU  - G Zicht
PY  - 1974
DO  - 10.1016/s0002-7138(09)61339-x
UR  - https://pubmed.ncbi.nlm.nih.gov/4850405/
ID  - 4850405
ER  -