Osogo, N. A., & Simatwo, K. B. (2025). On Extension of Existing Results on the Diophantine Equation: \(\sum_{r=1}^n w_r^2+\frac{n}{3} d^2=3\left(\frac{n d^2}{3}+\sum_{r=1}^{\frac{n}{3}} w_{3 r-1}^2\right)\). Earthline Journal of Mathematical Sciences, 15(2), 201-209. https://doi.org/10.34198/ejms.15225.201209