@article{10_57016_TM_GKZB9621,
     author = {Jordan Tabov and Asen Velchev and Rayna Alashka and Sevdalin Tsvetanov},
     title = {An application of the quadrilateral's geometry in solving competitive planimetric problems},
     journal = {The Teaching of Mathematics},
     pages = {46 },
     publisher = {mathdoc},
     volume = {XXVI},
     number = {1},
     year = {2023},
     doi = {10.57016/TM-GKZB9621},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.57016/TM-GKZB9621/}
}