TY  - RPRT
TI  - TREE LINES AND GERM PLASM-A STUDY IN EVOLUTIONARY LIMITATIONS.
AU  - J Clausen
PY  - 1963
DO  - 10.1073/pnas.50.5.860
UR  - https://pubmed.ncbi.nlm.nih.gov/16591124/
ID  - 16591124
ER  -