?url_ver=Z39.88-2004&rft_id=doi%3A10.1080%2F10106049.2020.1805029&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=M+K&rft.au=Gumma%2C+M+K&rft.aulast=Gumma&rft.atitle=Crop+type+identification+and+spatial+mapping+using+Sentinel-2+satellite+data+with+focus+on+field-level+information&rft.title=Geocarto+International+(TSI)&rft.issn=1010-6049&rft.date=August+2020&rft.pages=1-17&rft.genre=article