TY  - JOUR
AU  - Ellers, Erich W.
TI  - Products of Elations and Harmonic Homologies
JO  - Canadian mathematical bulletin
PY  - 1985
SP  - 397
EP  - 400
VL  - 28
IS  - 4
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1985-047-x/
DO  - 10.4153/CMB-1985-047-x
ID  - 10_4153_CMB_1985_047_x
ER  -