@article{TM2_2019_XXII_1_a1,
     author = {Meirav Amram and Miriam Dagan and Sagi Levi and Artour Mouftakhov},
     title = {Formalising the use of the centre of mass method in mathematical problems},
     journal = {The Teaching of Mathematics},
     pages = {17 },
     publisher = {mathdoc},
     volume = {XXII},
     number = {1},
     year = {2019},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TM2_2019_XXII_1_a1/}
}