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Pérez, A.G.; Olías, R.; Espada, J.; Olías, J.M.; Sanz, C., Rapid determination of sugars, nonvolatile acids, and ascorbic acid in strawberry and other fruits, J. Agric. Food Chem., 1997, 45, 9, 3545-3549, https://doi.org/10.1021/jf9701704 . [all data]