TY  - RPRT
TI  - Multivariate structural statistics in natural history.
AU  - L Van Valen
PY  - 1974
DO  - 10.1016/0022-5193(74)90053-8
UR  - https://pubmed.ncbi.nlm.nih.gov/4836888/
ID  - 4836888
ER  -