TY  - RPRT
TI  - Demographic patterns of Ferocactus cylindraceus in relation to substrate age and grazing history
AU  - Janice E. Bowers
PY  - 1997
DO  - 10.1023/a:1009767621391
UR  - https://pubs.usgs.gov/publication/70020187
ID  - 70020187
ER  -