TY  - JOUR
AU  - Wille, Rudolf
TI  - Variety Invariants for Modular Lattices
JO  - Canadian journal of mathematics
PY  - 1969
SP  - 279
EP  - 283
VL  - 21
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1969-029-2/
DO  - 10.4153/CJM-1969-029-2
ID  - 10_4153_CJM_1969_029_2
ER  -