@article{TM2_2007_X_2_a2,
     author = {G. Dimakos and E. Nikoloudakis and S. Ferentinos and E. Choustoulakis},
     title = {Developing a proof-writing tool for novice lyceum geometry students},
     journal = {The Teaching of Mathematics},
     pages = {87 },
     publisher = {mathdoc},
     volume = {X},
     number = {2},
     year = {2007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TM2_2007_X_2_a2/}
}