1. (1) T. Kato, T. Inoue, and Y. Suzuoki: “Evaluation of Relation between Distance and Insolation Fluctuation Independence based on Coherence and Ensemble Average of Insolation Fluctuations at Two points”, IEEJ Trans. PE, Vol. 131, No. 1, pp. 29-36 (2011) (in Japanese)
2. (2) T. Kato, T. Inoue, and Y. Suzuoki: “Evaluation of Overall Insolation Fluctuation Property Considering Insolation Fluctuation Independence among Various Points in Large Area”, IEEJ Trans. PE, Vol. 131, No. 1, pp. 37-43 (2011) (in Japanese)
3. (3) T. Kato, T. Inoue, N. Honda, M. Koaizawa, S. Nishino, and Y. Suzuoki: “Geographical Extent Feasible for Standard Deviation Calculation using 1/√N Rule regarding Ensemble Average Insolation Fluctuation”, IEEJ Trans. PE, Vol. 132, No. 3, pp. 213-219 (2012) (in Japanese)