@article{article0eff9287,
title   = {Development and in vitro evaluation of extended-release theophylline matrix capsules},
author = {Pinheiro, Vanessa Alves and Kaneko, Telma Mary and Velasco, Maria Valéria Robles and Consiglieri, Vladi Olga},
year = {2007},
doi = {10.1590/s1516-93322007000200012},
journal   = {Revista Brasileira de Ciências Farmacêuticas}
}