%0 Journal Article
%A Guzmán, Osvaldo
%T The ultrafilter number and $\mathfrak {hm}$
%J Canadian journal of mathematics
%D 2023
%P 494-530
%V 75
%N 2
%U http://geodesic.mathdoc.fr/articles/10.4153/S0008414X21000614/
%R 10.4153/S0008414X21000614
%F 10_4153_S0008414X21000614