?url_ver=Z39.88-2004&rft_id=10.1109%2FMGRS.2015.2498840&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=See%2C+L.&rft.aulast=See&rft.aufirst=L.&rft.issue=3&rft.volume=4&rft.date=2016&rft.issn=2473-2397&rft.atitle=Supporting+Earth-Observation+Calibration+and+Validation%3A+A+new+generation+of+tools+for+crowdsourcing+and+citizen+science&rft.title=IEEE+Geoscience+and+Remote+Sensing+Magazine&rft.pages=38-50&rft.genre=article