TY  - JOUR
AU  - Ross, David
TI  - Tree self-embeddings
JO  - Canadian mathematical bulletin
PY  - 1989
SP  - 30
EP  - 33
VL  - 32
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1989-005-7/
DO  - 10.4153/CMB-1989-005-7
ID  - 10_4153_CMB_1989_005_7
ER  -