Sharpe, ANRayman, MKMalik, NBeckers, HJDelfgou, Eal., et2025-03-112025-03-111987https://rivm.openrepository.com/handle/10029/630685ICMSF methods study. XVII. An international comparative study of the direct plate and hydrophobic grid-membrane filter methods for enumeration of Escherichia coli in foods.ArticleCan J Microbiol 1987; 33:85-922025-03-11