Martins, Herminia Maria Lourdes, et al. “Yeasts in Pigeon Feacal Droppings in Lisbon - Portugal, 1994”. Brazilian Journal of Veterinary Research and Animal Science, vol. 34, no. 5, Oct. 1997, pp. 259-60, https://doi.org/10.11606/issn.2318-3659.v34i5p259-260.