@book{257790,
	author = {Santos Júnior, A.C. dos},
	title = {Maize productivity in succession to cover crops, nitrogen fertilization and inoculation with Azospirillum brasilense},
	url = {http://www.scielo.br/pdf/rbeaa/v23n12/1415-4366-rbeaa-23-12-0966.pdf}
}