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Issues for the Understanding of Electric Circuits (VERSTÄNDNISPROBLEME ELEKTRIZITÄTSLEHRE)Vol 12 No 3 (2021)This issue consists of (translated) reprints of three research articles originally published in "HEFT 5 / 61. JAHRGANG / 2012 VERSTÄNDNISPROBLEME ELEKTRIZITÄTSLEHRE / PdN PHYSIK in der Schule" in German.
