Donkova, D., Tonev, T. Post-harvest residues of winter wheat and corn and their incorporation depending on nitrogen fertilization. I. Amount of post-harvest residue.. 2005 с. 11-21,.
Donkova, D., Tonev, T. Post-harvest residues of winter wheat and corn and their incorporation depending on nitrogen fertilization. I. Amount of post-harvest residue.. 2005 с. 11-21,.
Donkova, D., Tonev, T. (2005) Post-harvest residues of winter wheat and corn and their incorporation depending on nitrogen fertilization. I. Amount of post-harvest residue., с. 11-21,.
Donkova, D., & Tonev, T. (2005). Post-harvest residues of winter wheat and corn and their incorporation depending on nitrogen fertilization. I. Amount of post-harvest residue.. с. 11-21.
Donkova D, Tonev T. Post-harvest residues of winter wheat and corn and their incorporation depending on nitrogen fertilization. I. Amount of post-harvest residue.. 2005. p. с. 11-21.