TY  - RPRT
TI  - Exact sampling formulas for multi-type Galton-Watson processes.
AU  - Peter Olofsson
AU  - Chad A Shaw
PY  - 2002
DO  - 10.1007/s002850200148
UR  - https://pubmed.ncbi.nlm.nih.gov/12373340/
ID  - 12373340
ER  -