4Sílvia Cristina Aguiar,Lúcia Maria Zeoula,Selma Lucy Franco,Lucimar Pontara Peres,Pedro Braga Arcuri,Evelyne Forano.Antimicrobial activity of Brazilian propolis extracts against rumen bacteria in vitro[J].World Journal of Microbiology and Biotechnology.2013(10)
5Ortrud Monika Barth,Alex da Silva de Freitas,Adriana Hitomi Matsuda,Ligia Bicudo de Almeida-Muradian.Botanical origin and Artepillin-C content of Brazilian propolis samples[J].Grana.2013(2)