[1]
E. A. Polulyakh and S. Maksymenko, “Foliations with all non-closed leaves on non-compact surfaces”, MFAT, vol. 22, no. 3, pp. 266–282, Sep. 2016, Accessed: Feb. 04, 2026. [Online]. Available: https://zen.imath.kiev.ua/index.php/mfat/article/view/641