Brower, Virgil W. «Innards of Ingarden. Secretion, Permeation & Physiology of Time . 25». в Roman Ingarden and His Times, под редакцией Dominika Czakon, Natalia Anna Michna, и Leszek Sosnowski. Poland: Księgarnia Akademicka Publishing, 2020. просмотрено ноябрь 5, 2026. https://books.akademicka.pl/publishing/catalog/book/83/chapter/1058.