P. P. Chernega, “Levy Downcrossing Theorem for the Arratia Flow”, Ukr. Mat. Zhurn., vol. 67, no. 2, pp. 261–271, Feb. 2015, Accessed: Dec. 05, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/1978