@article{JGG_2011_15_2_JGG_2011_15_2_a8,
     author = {T. Branoff and E. Wiebe and M. Shreve },
     title = {How {Students} {Use} {Online} {Instructional} {Resources} in a {Blended} {Instruction} {Introductory} {Engineering} {Graphics} {Course}},
     journal = {Journal for geometry and graphics},
     pages = {213--223},
     publisher = {mathdoc},
     volume = {15},
     number = {2},
     year = {2011},
     url = {http://geodesic.mathdoc.fr/item/JGG_2011_15_2_JGG_2011_15_2_a8/}
}