Jeya Bharathi, S, K Thiagarajan, and K Navaneetham. “Parikh Factor Matrices for Finite Words of Rectangular Hilbert Space Filling Curve”. International Journal of Engineering and Technology 7, no. 2.31 (May 29, 2018): 50–55. Accessed February 25, 2026. https://www.sciencepubco.com/index.php/IJET/article/view/13396.