TY  - JOUR
AU  - Chen, Yichao
AU  - Gao, Xiaojian
AU  - Huang, Yuanqiu
TI  - Enumerating Unlabelled Embeddings of Digraphs
JO  - Canadian mathematical bulletin
PY  - 2018
SP  - 55
EP  - 69
VL  - 61
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-2017-050-9/
DO  - 10.4153/CMB-2017-050-9
ID  - 10_4153_CMB_2017_050_9
ER  -