User:Barkeep49/Learning by teaching

Removed or Partially Used References for Future Use

 * Weng

Precursors


 * Gartner 1971 in the US,
 * in Germany
 * Krüger 1975,
 * Wolfgang Steining 1985,
 * Udo Kettwig 1986,
 * Theodor F. Klassen 1988,
 * Ursula Drews 1997
 * A. Renkl 1997
 * Martin 2007
 * Ruep 1999 ).

Potential Secondary Sources
Time British Psychology Society Science Direct (paywall) Futurity Learn Lab Aslan Grzega (already used?)