@INPROCEEDINGS{8927005, 
author={R. {Campos-Rebelo} and F. {Moutinho} and L. {Paiva} and P. {Maló}}, 
booktitle={IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society}, 
title={Annotation Rules for XML Schemas with Grouped Semantic Annotations}, 
year={2019}, 
volume={1}, 
number={}, 
pages={5469-5474},}