@article{1472029,
      author = {Verhulst, F.},
      url = {http://library.usi.edu/record/1472029},
      title = {A toolbox of averaging theorems : ordinary and partial  differential equations /},
      doi = {https://doi.org/10.1007/978-3-031-34515-9},
      recid = {1472029},
      pages = {1 online resource (x, 193 pages) :},
}