Nutritional upgrade of olive mill stone waste, walnut shell and their mixtures by applying solid state fermentation initiated by Pleurotus ostreatus. - Arapoglou, Dimitrios; Eliopoulos, Christos; Markou, Giorgos; Langousi, Ioanna; Saxami, Georgia; Haroutounian, Serkos A. (Scientific Reports, 2024)