SCHMIDT , J. Variation of European ecotypes of perennial ryegrass (Lolium perenne L.) in Poland. Plant Breeding and Seed Science, [S. l.], v. 51, p. 76–90, 2005. Disponível em: http://ojs.ihar.edu.pl/index.php/pbss/article/view/682. Acesso em: 11 jan. 2025.