TY  - JOUR
AU  - Grätzer, G.
AU  - Lakser, H.
TI  - Homomorphisms of Distributive Lattices as Restrictions of Congruences. II. Planarity and Automorphisms
JO  - Canadian journal of mathematics
PY  - 1994
SP  - 3
EP  - 54
VL  - 46
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1994-001-7/
DO  - 10.4153/CJM-1994-001-7
ID  - 10_4153_CJM_1994_001_7
ER  -