TY  - JOUR
AU  - Mark Siggers
TI  - Reflexive graphs with near unanimity but no semilattice polymorphisms
JO  - The electronic journal of combinatorics
PY  - 2018
VL  - 25
IS  - 4
UR  - http://geodesic.mathdoc.fr/articles/10.37236/6196/
DO  - 10.37236/6196
ID  - 10_37236_6196
ER  -