@article{TM2_2002_V_2_a4,
     author = {Milosav M. Marjanovi\'c},
     title = {Didactical {Analysis} of {Primary} {Geometric} {Concepts}},
     journal = {The Teaching of Mathematics},
     pages = {99 },
     publisher = {mathdoc},
     volume = {V},
     number = {2},
     year = {2002},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TM2_2002_V_2_a4/}
}