@article{Lavrov:2017g6,
  author = "Lavrov, Peter  and  Merzlikin, Boris",
  title = "{Effective action with composite fields and Clairaut-type equations}",
  doi = "10.22323/1.292.0029",
  journal = "PoS",
  year = 2017,
  volume = "CORFU2016",
  pages = "029"
}