@article{AMI_2021_54_a14,
     author = {Francesco Laudano},
     title = {Visual argumentations in teaching trigonometry},
     journal = {Annales mathematicae et informaticae},
     pages = {183--193},
     publisher = {mathdoc},
     volume = {54},
     year = {2021},
     doi = {10.33039/ami.2021.10.002},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.33039/ami.2021.10.002/}
}