1. The houbara bustard in the north-west Kyzylkum (U.S.S.R.);Alekseev;Bustard Studies,1985
2. Observation of the feeding behavior of a group of houbara bustards in semi captivity in the Mahazat as-Sayd Reserve;Anegay,1992
3. Ecologie des oiseaux du Maroc Oriental;Brosset;Travaux de l'Institut Scientifique Cherifien (Zoologie),1961
4. The world status of the Houbara: a preliminary review;Collar,1980
5. Collins, D. R. 1984, A Study of the Canarian Houbara Bustard (Chlamydotis undulata fuertaventurae, University of London