Gibbons, Nicholls, Bailey & Samour 2004. Paraspiralatus sakeri n. g., n. sp. (Nematoda: Spiruroidea, Spirocercidae) from saker falcons, Falco cherrug in Saudi Arabia and the first report of larvae from the subcutaneous tissues of houbara bustards, Chlamydotis undulata macqueeni in Pakistan. Journal of Helminthology, 78(1), March 2004: 33-40