Vergleich der Leistungsmotivation von Hauptschülern und Gymnasiasten im Schul- und Freizeitbereich mit dem RLMI-K/J

2007 
A light emitting writing apparatus, which includes a cylinder in the pen-holder thereof for holding a dry battery, a holder plate in the pen-holder thereof for holding a lamp bulb and a plurality of writing elements, and a button slider positioned in a through-hole on the pen-holder thereof for controlling the connection of the positive end of the dry battery to its negative end through the lamp bulb so as to turn on the lamp bulb to produce light.
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