Kreidl, MartinMartinKreidl2019-09-192014-09-2420040266-7215https://fis.uni-bamberg.de/handle/uniba/10966deuPolitics and secondary school tracking in socialist Czechoslovakia, 1948-1989articlehttp://esr.oupjournals.org/cgi/reprint/20/2/123.pdf