M.A.Grigoras and  A.Popescu and  D.Pamfil and  I.Has and  L.C.Cota,  Effect of Conservation Agriculture on Maize Yield in the Transilvanian Plain, Romania.   journal   = {International Journal of Agricultural and Biosystems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    June 2011, vol. 54(6). 339 - 344
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/12499.