@misc{Ingarden_Roman_Stanisław_(1920-_)_Simplified,
 author={Ingarden, Roman Stanisław (1920- )},
 copyright={Ingarden, Roman Stanisław},
 address={Warszawa},
 howpublished={online},
 publisher={PWN},
 language={eng},
 type={nadbitka},
 title={Simplified axioms for information without probability},
}