Lenarcik, Andrzej, and Mateusz Masternak. “Effective Proof of Guseĭn-Zade Theorem That Branches May Be Deformed With Jump One”. In Analitic and Algebraic Geometry 4, edited by Tadeusz Krasiński and Stanisław Spodzieja, 95–119. Poland: Lodz University Press, 2022. Accessed January 21, 2026. https://www.press.uni.lodz.pl/index.php/wul/catalog/book/1259/chapter/3682.