Mau, N.
(2011).
 On the solution o f  a class o f  function equation in plane geometry.
<em>VNU Journal Of Science: Mathematics - Physics, 27</em>(2).
Retrieved from <a href="https://js.vnu.edu.vn/MaP/article/view/1585" target="_new">https://js.vnu.edu.vn/MaP/article/view/1585</a>