\vspace{10mm}
\hbox{\hbox to 0.5\hsize{%
-V ........ dne ............
-\hss}\hbox to 0.5\hsize{%
-Podpis autora
-\hss}}
+V \hbox to 6em{\dotfill} dne \hbox to 6em{\dotfill}
+\hss}\hbox to 0.5\hsize{\dotfill\quad}}
+\smallskip
+\hbox{\hbox to 0.5\hsize{}\hbox to 0.5\hsize{\hfil Podpis autora\hfil}}
\vspace{20mm}
\newpage
\vspace{10mm}
\hbox{\hbox to 0.5\hsize{%
-In ........ date ............ % FIXME!
-\hss}\hbox to 0.5\hsize{%
-signature of the author
-\hss}}
+In \hbox to 6em{\dotfill} date \hbox to 6em{\dotfill}
+\hss}\hbox to 0.5\hsize{\dotfill\quad}}
+\smallskip
+\hbox{\hbox to 0.5\hsize{}\hbox to 0.5\hsize{\hfil Author's signature\hfil}}
\vspace{20mm}
\newpage