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Education on Lockdown Again: How Did Schoolchildren Spend Their Time during the Early 2021 School Closures? / Wößmann Ludger ; Freundl Vera ; Grewenig Elisabeth ; Lergetporer Philipp ; Werner Katharina ; Zierow Larissa / Ifo-Institut fu@r Wirtschaftsforschung / Ifo Schnelldienst / 36-52 / 2021
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