TY  - JOUR
AU  - Sekanina, Zdeněk
TI  - Beyer's method of cometary brightness dispersion as a criterion of cometary activity
JO  - Acta Universitatis Carolinae. Mathematica et Physica
PY  - 1961
SP  - 15
EP  - 18
VL  - 02
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AUCMP_1961__2_1_a2/
LA  - en
ID  - AUCMP_1961__2_1_a2
ER  -