FixaFilm post production has licensed Algosoft’s VIVA to remove flicker from Polish feature films:
“Ewa chce spać” 1958
“Jutro premiera” 1962
“Sztuka kochania” 1989
“Medium” 1985
There is a flicker removal demo on FixaFilm showcase (http://www.fixafilm.pl/en/restoration/).