TY  - RPRT
TI  - Enumeration of structure-sensitive graphical subsets: Theory.
AU  - R E Merrifield
AU  - H E Simmons
PY  - 1981
DO  - 10.1073/pnas.78.2.692
UR  - https://pubmed.ncbi.nlm.nih.gov/16592974/
ID  - 16592974
ER  -