@article{VSGTU_2020_24_2_a9,
     author = {S. Chen and B. Cong and D. Zhang and X. Liu and S. Shen},
     title = {An undamped oscillation model with two
},
     journal = {Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences},
     pages = {390--400},
     publisher = {mathdoc},
     volume = {24},
     number = {2},
     year = {2020},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/VSGTU_2020_24_2_a9/}
}