%0 Journal Article %A an Huef, Astrid %A Raeburn, Iain %A Tolich, Ilija %T HNN Extensions of Quasi-Lattice Ordered Groups and their Operator Algebras %J Documenta mathematica %D 2018 %P 327-351 %V 23 %I mathdoc %U http://geodesic.mathdoc.fr/item/DOCMA_2018__23__a52/ %G en %F DOCMA_2018__23__a52