\input zb-basic \input zb-ioport \iteman{io-port 50362926} \itemau{Gurlitt, Johannes; Renkl, Alexander} \itemti{Are high-coherent concept maps better for prior knowledge activation? differential effects of concept mapping tasks on high school vs. University students} \itemso{J. Comp. Assisted Learning 24, No. 5, 407-419 (2008).} \itemcc{} \itemut{} \itemli{doi:10.1111/j.1365-2729.2008.00277.x} \end