@article{JGG_1998_2_1_a7,
     author = {G. Gittler and J. Glueck},
     title = {Differential {Transfer} of {Learning:} {Effects} of {Instruction} in {Descriptive} {Geometry} on {Spatial} {Test} {Performance}},
     journal = {Journal for geometry and graphics},
     pages = {071--084},
     publisher = {mathdoc},
     volume = {2},
     number = {1},
     year = {1998},
     url = {http://geodesic.mathdoc.fr/item/JGG_1998_2_1_a7/}
}