Francis  Lankester 

Boat petroglyphs in Egypt's central Eastern Desert, in: Barnard, Hans; Duistermaat, Kim (eds), The history of the peoples of the Eastern Desert. Cotsen Institute of Archaeology Monograph 73. Los Angeles

Egyptian script and rock-art: connected or Unconnected? Ecriture égyptienne et art rupestre: connectés ou non?, in: Graff, Gwenola, Jiménez Serrano, Alejandro (eds.), Préhistoires de l'écriture: iconographie, pratiques graphiques et émergence de l'écrit dans l'Egypte prédynastique; Prehistories of writing: iconography, graphic practices and emergence of writing in Predynastic Egypt. Préhistoires de la Méditerranée. Aix-en-Provence

Desert boats: predynastic and pharaonic era rock-art in Egypt's central Eastern Desert, distribution, dating, and interpretation. BAR International Series 2544. Oxford