Faizullin, D., K. Hiraki, H.-I. team, and M. Cho. “OPTIMIZATION OF A SUN VECTOR DETERMINATION FOR PINHOLE TYPE SUN SENSOR”. International Journal of Research -GRANTHAALAYAH, vol. 5, no. 7, July 2017, pp. 436-49, doi:10.29121/granthaalayah.v5.i7.2017.2152.