TY  - JOUR
AU  - Miller, G. A.
TI  - Extension of a group by operators of orders two and four.
JO  - Prace Matematyczno-Fizyczne
PY  - 1911
SP  - 69
EP  - 71
VL  - 22
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/PMF_1911_22_1_a5/
LA  - en
ID  - PMF_1911_22_1_a5
ER  -