ZHANG Shengui. Multiple periodic solutions for impulsive differential systems with variable exponent[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2020,59(3):143-149.
ZHANG Shengui. Multiple periodic solutions for impulsive differential systems with variable exponent[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2020,59(3):143-149. DOI: 10.13471/j.cnki.acta.snus.2020.03.016.