{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Vertical accuracy of two differentially corrected global positioning satellite systems.: An article from: Journal of Soil and Water Conservation","author_name":"D.P. Johansen, D.E. Clay, C.G. Carlson, K.W. Stange, S.A. Clay, D.D. Malo, J.A. Schumacher","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0008ILU4E.html\">Vertical accuracy of two differentially corrected global positioning satellite systems.: An article from: Journal of Soil and Water Conservation</a>","width":400,"height":300}