@incollection{Duarte11, author = {Vânia André and M. Teresa Duarte}, title = {Novel Challenges in Crystal Engineering: Polymorphs and New Crystal Forms of Active Pharmaceutical Ingredients}, booktitle = {Current Trends in X-Ray Crystallography}, publisher = {IntechOpen}, address = {Rijeka}, year = {2011}, editor = {Annamalai Chandrasekaran}, chapter = {3}, doi = {10.5772/28954}, url = {https://doi.org/10.5772/28954} }