AUTHOR=Smith Ian F. C. TITLE=Grand Challenges of Structural Sensing JOURNAL=Frontiers in Built Environment VOLUME=1 YEAR=2015 URL=https://www.frontiersin.org/journals/built-environment/articles/10.3389/fbuil.2015.00019 DOI=10.3389/fbuil.2015.00019 ISSN=2297-3362