@article{10_57016_TM_HLUM6570,
     author = {Indrek Zolk},
     title = {Angles and trigonometry},
     journal = {The Teaching of Mathematics},
     pages = {86 },
     year = {2025},
     volume = {XXVIII},
     number = {2},
     doi = {10.57016/TM-HLUM6570},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.57016/TM-HLUM6570/}
}