Khadidja, M. M., 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”. Acta Zoológica Lilloana, vol. 64, no. 2, Dec. 2020, pp. 73-83, doi:10.30550/j.azl/2020.64.2/1.