Investigating links between rainfall variations in the Ogooué River basin and ENSO in the Pacific Ocean over the period 1940–1999. - Bogning, Sakaros; Frappart, Frédéric; Mahé, Gil; Paris, Adrien; Onguene, Raphael; Blarel, Fabien; Niño, Fernando; Etame, Jacques; Braun, Jean-Jacques (Proceedings of the International Association of Hydrological Sciences (PIAHS), 2021)