JOHANSSON, C.-G. Determination of total nitrogen in barley and malt by combustion method. Collaborative trial: Submitted on behalf of the Analysis Committee of EBC. BrewingScience, [S. l.], v. 49, n. 11/12, p. 326–328, 1996. Disponível em: https://brewingscience.de/index.php/brewingscience/article/view/751. Acesso em: 31 may. 2026.