A climatological study of typhoons over the Philippine Area of Responsibility from 1989–2018Aaliyah Marie S. Desquitado, Marianne Roselle R. Perez, Rein Simoun R. Puchero and Ernest P. MacalaladE3S Web Conf., 200 (2020) 02001DOI: https://doi.org/10.1051/e3sconf/202020002001