@article{JGG_2019_23_2_JGG_2019_23_2_a11,
     author = {M. Chen and B. Li and Y. Hu and Z. Ren },
     title = {A {Teaching} {Ecosystem} of {Engineering} {Graphics} {Based} on the {Deeper} {Learning} {Cycle} {Model} and {Asynchronous} {SPOC}},
     journal = {Journal for geometry and graphics},
     pages = {259--267},
     publisher = {mathdoc},
     volume = {23},
     number = {2},
     year = {2019},
     url = {http://geodesic.mathdoc.fr/item/JGG_2019_23_2_JGG_2019_23_2_a11/}
}