?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Stolbovoi%2C+V.&rft.aulast=Stolbovoi&rft.aufirst=V.&rft.date=1996&rft.title=A+system+of+interpretation+of+soil+-+Ecological+data+based+on+soil+survey&rft.genre=proceeding