TY  - JOUR
AU  - Staněk, Svatoslav
TI  - A phase of the differential equation $y'=Q(t)y$ with a complex coefficient $Q$ of the real variable
JO  - Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica
PY  - 1986
SP  - 57
EP  - 75
VL  - 25
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AUPO_1986__25_1_a3/
LA  - en
ID  - AUPO_1986__25_1_a3
ER  -