%0 Journal Article %A Staněk, Svatoslav %T The characteristic multipliers of a block and of an inverse block of second-order linear differential equations with $pi$-periodic coefficients %J Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica %D 1978 %P 39-51 %V 17 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/AUPO_1978__17_1_a4/ %G en %F AUPO_1978__17_1_a4