Effect of light, oxygen and temperature on the stability of artepillin C and p-coumaric acid from Brazilian green propolis - Arruda, Caroline; Ribeiro, Victor Pena; Almeida, Marília Oliveira; Mejía, Jennyfer Andrea Aldana; Casoti, Rosana; Bastos, Jairo Kenupp (Journal of Pharmaceutical and Biomedical Analysis, 2020)