?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=M.&rft.au=Raghu+Ramulu%2C+M.&rft.aulast=Raghu+Ramulu&rft.date=2008&rft.title=Gas+to+particle+mass+transfer+in+downers&rft.isbn=9783930400577&rft.genre=proceeding