Petr Hasil, Michal Veselý. Modified Prüfer angle and conditional oscillation of perturbed linear and half-linear differential equations. Applied Mathematics and Computation, 361:788-809, 2019. [doi]
@article{HasilV19,
title = {Modified Prüfer angle and conditional oscillation of perturbed linear and half-linear differential equations},
author = {Petr Hasil and Michal Veselý},
year = {2019},
doi = {10.1016/j.amc.2019.06.027},
url = {https://doi.org/10.1016/j.amc.2019.06.027},
researchr = {https://researchr.org/publication/HasilV19},
cites = {0},
citedby = {0},
journal = {Applied Mathematics and Computation},
volume = {361},
pages = {788-809},
}