Janasz, Marek. “On the Nearly Free Simplicial Line Arrangements With up to 27 Lines”. In Analitic and Algebraic Geometry 4, edited by Tadeusz Krasiński and Stanisław Spodzieja, 75–82. Poland: Lodz University Press, 2022. Accessed February 8, 2026. https://press.uni.lodz.pl/index.php/wul/catalog/book/1259/chapter/3680.