Corrigendum to: "On ordering free groups" [J. Symbolic Comput. 40(2005) 1285-1290]. - Adam Clay; Lawrence H. Smith (J. Symb. Comput., 2009)

Free products of circularly ordered groups with amalgamated subgroup. - Adam Clay; Tyrone Ghaswala (J. Lond. Math. Soc., 2019)