Physicochemical and palynological analysis of Brazilian Apis mellifera bee and stingless bee (Tetragonisca, angustula) honey - Almeida-Muradian, Ligia Bicudo de; Sousa, Graziela Leal; Freitas, Alex da Silva de; Barth, Ortrud Monika (International Symposium on Authenticity and Quality of Bee Products, 2010)