Sarvate, Dinesh G., and Dinkayehu M. Woldemariam. 2022. “A Note on $GDD(1, N, N , 4;\lambda_{1},\lambda_{2})$”. Journal of Algebra Combinatorics Discrete Structures and Applications 9 (2):85-99. https://doi.org/10.13069/jacodesmath.1111720.