Study of effect of non-central obscuration to obscured circular aperture on third order spherical aberration . Baghdad Science Journal, Iraq, Baghdad, v. 9, n. 2, p. 236–243, 2012. DOI: 10.21123/bsj.2012.9.2.236-243. Disponível em: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/1356.. Acesso em: 28 apr. 2024.