%0 Journal Article %A Jonathan Cancino %A Osvaldo Guzmán %A Michael Hrušák %T Ultrafilters and the Katětov order %J Zbornik radova %D 2025 %P 137 %V 22 %N 30 %U http://geodesic.mathdoc.fr/articles/10.64191/zr24040410104/ %R 10.64191/zr24040410104 %G en %F 10_64191_zr24040410104