GOSK, E. .; LEVINS, I. .; FLINDT JØRGENSEN, L. . Shallow groundwater quality in Latvia and Denmark. GEUS Bulletin, Copenhagen, Denmark, v. 13, p. 65–68, 2007. DOI: 10.34194/geusb.v13.4979. Disponível em: https://geusbulletin.org/index.php/geusb/article/view/4979. Acesso em: 26 apr. 2024.