Cargnin ST, Gnoatto SB (aprilie 2017). „Ursolic acid from apple pomace and traditional plants: A valuable triterpenoid with functional properties”. Food Chem. 220: 477–489. doi:10.1016/j.foodchem.2016.10.029. PMID27855928.
Cargnin ST, Gnoatto SB (aprilie 2017). „Ursolic acid from apple pomace and traditional plants: A valuable triterpenoid with functional properties”. Food Chem. 220: 477–489. doi:10.1016/j.foodchem.2016.10.029. PMID27855928.