M. M. Khadidja, B. Ikram, B. Mouslim, A. Sadek, H. Moussa, and M. Noureddine, “Abundances and breeding phenology of three sympatric grebes (little grebe Tachybaptus ruficollis, great crested grebe Podiceps cristatus and black-necked grebe Podiceps nigricollis) in Dayet El Ferd, Algeria”, AZL, vol. 64, no. 2, pp. 73–83, Dec. 2020.