@ARTICLE{Martínez_José_Mansilla_Competition_2015, author={Martínez, José Mansilla and de Juan Valero, José-Arturo and Padilla, Alfonso Domínguez and Picornell Buendía, María-Raquel}, volume={vol. 55}, number={No 4}, journal={Journal of Plant Protection Research}, howpublished={online}, year={2015}, publisher={Committee of Plant Protection PAS}, publisher={Institute of Plant Protection – National Research Institute}, title={Competition and critical periods in spring sugar beet cultivation}, URL={http://ochroma.man.poznan.pl/Content/89680/PDF/JPPR_55(4)_01_Martinez.pdf}, doi={10.1515/jppr-2015-0044}, }