GONZALEZ VILLALBA, Hugo Abelardo; RUIZ DIAZ, Dorivar; SCHONINGER, Evandro Luiz  and  LEGUIZAMON ROJAS, Carlos Andrés. Winter cover crops influence weed establishment and nitrogen supply to maize. Investig. Agrar. [online]. 2018, vol.20, n.2, pp.100-109. ISSN 2305-0683.