BOYD-WILSON, K.; BUTLER, R.; WALTER, M. Calcium chloride against black spot on apples. New Zealand Plant Protection, [S. l.], v. 63, p. 279-279, 2010. DOI: 10.30843/nzpp.2010.63.6592. Disponível em: https://journal.nzpps.org/index.php/nzpp/article/view/6592. Acesso em: 1 dec. 2020.