Completely semi-stable trees

D.A. Holton
1973 Bulletin of the Australian Mathematical Society  
Completely semi-stable trees are characterised by the complete absence of three types of subtrees. Completely semi-stable trees In the remainder of this paper T is a tree on a vertex set V .
doi:10.1017/s0004972700043367 fatcat:ha3mhwe3rvcbbit4yvlfblamtm