Landscape characteristics and its relationships with the diversity and structure of riparian vegetation of southeastern Mexico Tekijät: Moreno-Jiménez, Victorio, Gama-Campillo, Lilia María, Romero-García, Alejandro, Ochoa-Gaona, Susana, Contreras-Sánchez, Wilfrido Miguel, Jiménez-Pérez, Nelly del Carmen, Mata-Zayas, Ena Edith