NAGY, P. T. Plant nutritional and environmental aspects of organic apple production in East Hungary. Ecocycles, [S. l.], v. 3, n. 1, p. 17-21, 2017. DOI: 10.19040/ecocycles.v3i1.70. Disponível em: https://www.ecocycles.net/ojs/index.php/ecocycles/article/view/70. Acesso em: 3 dec. 2020.