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1
by Lytras, Miltiadis
Published 2019
MDPI - Multidisciplinary Digital Publishing Institute
Subjects: “...personalized business mode...”
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2
by Randazzo, Giovanni
Published 2022
MDPI - Multidisciplinary Digital Publishing Institute
Subjects: “...personal vehicles...”
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3
by Dudek, Grzegorz
Published 2023
MDPI - Multidisciplinary Digital Publishing Institute
Subjects: “...personal teaching and learning...”