Kirjackis, Jevgenijus, Edmundas Mazėtis, and Grigorijus Melničenko. 2017. “On the Problem of the Existence and Uniqueness of Right Triangles”. Lietuvos Matematikos Rinkinys 58 (B): 33–38. https://doi.org/10.15388/LMR.B.2017.06.