%0 Journal Article %A Susan Hermiller %A Conchita Martínez-Pérez %T HNN extensions and stackable groups %J Groups, geometry, and dynamics %D 2018 %P 1123-1158 %V 12 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4171/ggd/467/ %R 10.4171/ggd/467 %F 10_4171_ggd_467