\vbox to 0.5\vsize{
\setlength\parindent{0mm}
\setlength\parskip{5mm}

{\Large\bfseries Abstrakt}

Text abstraktu napsán v~češtině.

\vspace{4mm}

{\Large\bfseries Klíčová slova}

Klíčová, slova, oddělená, čárkou

\vss}\nobreak\vbox to 0.49\vsize{
\setlength\parindent{0mm}
\setlength\parskip{5mm}

{\Large\bfseries Abstract}

Abstract written in English.

\vspace{4mm}

{\Large\bfseries Keywords}

Keywords, separated, by, commas

\vss}

\newpage

