Khadidja, M. M., Ikram, B., Mouslim, B., Sadek, A., Moussa, H., & Noureddine, M. (2020). 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, 64(2), 73–83. https://doi.org/10.30550/j.azl/2020.64.2/1