Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{UM_2014__22_4_a5, author = {Calda, Emil}, title = {Dva \v{c}tverce v rovnostrann\'em troj\'uheln{\'\i}ku}, journal = {U\v{c}itel matematiky}, pages = {252--256}, publisher = {mathdoc}, volume = {22}, number = {4}, year = {2014}, language = {cz}, url = {http://geodesic.mathdoc.fr/item/UM_2014__22_4_a5/} }
Calda, Emil. Dva čtverce v rovnostranném trojúhelníku. Učitel matematiky, Tome 22 (2014) no. 4, pp. 252-256. http://geodesic.mathdoc.fr/item/UM_2014__22_4_a5/