@article{article1de76147,
title   = {Sesquiterpenes, diterpenes, steroids and alkaloid from branches of xylopia brasiliensis Spreng (Annonaceae)},
author = {Moreira, Isabel Craveiro and Lago, João Henrique Ghilardi and Roque, Nidia Franca},
year = {2005},
doi = {10.1016/j.bse.2005.03.005},
journal   = {Biochemical Systematics and Ecology}
}