NERSESIAN, V. A. POSSIBLE COMPLEXES OF THREE-DIMENSIONAL PLANES IN PROJECTIVE SPACE P6. I. Proceedings of the YSU A: Physical and Mathematical Sciences, Yerevan, Armenia, v. 35, n. 3 (196), p. 35–39, 2001. DOI: 10.46991/PYSUA.2001.35.3.035. Disponível em: https://journals.ysu.am/index.php/proceedings-phys-math/article/view/vol35_no3_2001_pp035-039. Acesso em: 22 jan. 2026.