Exemplos:
Connolly de Pernas, Eduardo. “Guillermo Brown o la acracia infantil.” Hibris, nº 15, 2003, pp. 32-39
Hujoel, Isabel A., Norelle R. Reilly, and Alberto Rubio-Tapia. "Celiac Disease: Clinical Features and Diagnosis." Gastroenterology Clinics of North America, vol. 48, nº 1, 2019, pp. 19-37.
Exemplo:
Roberts, R., et al. "Optical and Radiocarbon Dating at Jinmium Rock Shelter in Northern Australia." Nature, vol. 393, no. 6683, 1998, pp. 358-362. https://doi.org/10.1038/30718