Lebid VO, Nizhnik LP. Spectral analysis of locally finite graphs with one infinite ray . Dopov. Nac. akad. nauk Ukr. [Internet]. 2025 Feb. 11 [cited 2026 Apr. 18];(3):29-35. Available from: https://nasu-periodicals.org.ua/index.php/dp/article/view/15604