Rui Wu. An anti-periodic LaSalle oscillation theorem. Appl. Math. Lett., 21(9):928-933, 2008. [doi]
@article{Wu08a:3, title = {An anti-periodic LaSalle oscillation theorem}, author = {Rui Wu}, year = {2008}, doi = {10.1016/j.aml.2007.10.004}, url = {http://dx.doi.org/10.1016/j.aml.2007.10.004}, researchr = {https://researchr.org/publication/Wu08a%3A3}, cites = {0}, citedby = {0}, journal = {Appl. Math. Lett.}, volume = {21}, number = {9}, pages = {928-933}, }