Grzaslewicz, Ryszard y Samir B. Hadid. «Denting point in the space of operator-valued continuous map». Revista Matemática Complutense, vol. 9, vol. 9, n.º 2, 1996, p. 289, doi: https://doi.org/10.5209/rev_REMA.1996.v9.n2.17570.