Tannus, João L. S., Marco A. Assis, and L.Patrícia C. Morellato. 2006. “Reproductive Phenology in Dry and Wet Grassland in an Area of Cerrado at Southeastern Brazil, Itirapina - SP”. Biota Neotropica 6 (3). Sao Paulo, Brazil. //www.biotaneotropica.org.br/BN/article/view/236.