@article{TM2_2018_XXI_1_a1,
     author = {Djordje M. Kadijevich},
     title = {Relating procedural and conceptual knowledge},
     journal = {The Teaching of Mathematics},
     pages = {15 },
     publisher = {mathdoc},
     volume = {XXI},
     number = {1},
     year = {2018},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TM2_2018_XXI_1_a1/}
}