TY  - JOUR
AU  - Philip Olin
TI  - Free products and elementary types of Boolean Algebras.
JO  - Mathematica Scandinavica
PY  - 1976
SP  - 5
EP  - 23
VL  - 38
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MS2_1976__38_166451/
ID  - MS2_1976__38_166451
ER  -