Candelaria  Martín del Río Álvarez 

Predynastic hairpins and combs from the necropolis of Naqada: preliminary conclusions, in: Kroeper, Karla; Chłodnicki, Marek; Kobusiewicz, Michał (eds), Archaeology of early Northeastern Africa: in memory of Lech Krzyżaniak. Studies in African Archaeology 9. Poznań

An analysis of the theriomorphic representations on combs and hairpins from the predynastic period, in: Hendrickx, Stan; Friedman, Renée; Ciałowicz, Krzysztof M.; Chłodnicki, Marek (eds), Egypt at its origins: studies in memory of Barbara Adams; proceedings of the International Conference "Origin of the State. Predynastic and Early Dynastic Egypt", Kraków, 28th August–1st September 2002. Orientalia Lovaniensia Analecta 138. Leuven

Special finds: the combs from HK6 Tomb 72. Nekhen News 26