1. (With Rudi Weikard) Sign-Changing Points of Solutions of Homogeneous Sturm-Liouville Equations with Measure-Valued Coefficients”, Published by Applicable Analysis, vol. 101, no. 5, 2022, pp. 1556-1570.

https://www.tandfonline.com/doi/abs/10.1080/00036811.2021.1932835

2. (With Rudi Weikard) Spectral Theory for Systems of Ordinary Differential Equations with Distributional Coefficients”, Published by the Journal of Differential Equations, vol. 268, no. 6, 2020, pp. 27522801.

https://www.sciencedirect.com/science/article/abs/pii/S0022039619304437

3. (With Rudi Weikard) On Leighton’s Comparison Theorem”, Published by the Journal of Differential Equations, vol. 262, no. 12, 2017, pp. 59785989.

https://www.sciencedirect.com/science/article/pii/S0022039617300876