NYGAARD, Erik et al. Pesticide leaching in Danish groundwater: identification of vulnerable areas. GEUS Bulletin, Copenhagen, Denmark, v. 4, p. 25–28, 2004. DOI: 10.34194/geusb.v4.4774. Disponível em: https://geusbulletin.org/index.php/geusb/article/view/4774. Acesso em: 15 oct. 2025.