On streams that are finitely redBezem, Marc; Nakata, Keiko; Uustalu, TarmoLogical methods in computer science2012 / p. 1-20 https://www.researchgate.net/publication/231582269_On_streams_that_are_finitely_red A type-theoretical study of nontermination = Tüübiteoreetiline uurimus mittetermineeruvusestVeltri, Niccolo2017 https://digi.lib.ttu.ee/i/?7631