Yoshifumi Ukita. Relation Between the Fourier Coefficients and the Interaction Effects Expressed by Using Kronecker Product in the Experimental Design. 横浜商大論集. 2015. 49. 1. 9-17
Yoshifumi Ukita. A Note on Computer Programming in Complex Space for Simultaneous Experiments. RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing. 2021. 238-241