2 citations to https://www.mathnet.ru/rus/smj821

1. Hans-Bert Rademacher, Iskander A. Taimanov, “The second closed geodesic, the fundamental group, and generic Finsler metrics”, Math. Z., 302:1 (2022), 629  
2. Simon Allais, “On the growth rate of geodesic chords”, Differential Geometry and its Applications, 73 (2020), 101668