Palabras claves: Best practice guidelines, INORGANIC NITROGEN, Isotope geochemistry, Nitrate, nitrogen-15, Oxygen-18, precipitation, standardized sampling
Autores: Balestrini R., Chantara S., Germain Esquivel-Hernández, Matiatos I., Monteiro L.R., Sánchez-Murillo R., Vystavna Y., Walters W., Wassenaar L.I., Wells N.S.