@article{JGG_2013_17_1_JGG_2013_17_1_a9,
     author = {V. Volkov and V. Yurkov and K. Panchuk and N. Kaygorodtseva and O. Ilyasova and K. Yakovenko },
     title = {An {Innovative} {Paradigm} of {Descriptive} {Geometry} {Courses}},
     journal = {Journal for geometry and graphics},
     pages = {119--128},
     publisher = {mathdoc},
     volume = {17},
     number = {1},
     year = {2013},
     url = {http://geodesic.mathdoc.fr/item/JGG_2013_17_1_JGG_2013_17_1_a9/}
}