@article{JMLR:v22:19-665,
  author  = {Riikka Huusari and Hachem Kadri},
  title   = {Entangled Kernels - Beyond Separability},
  journal = {Journal of Machine Learning Research},
  year    = {2021},
  volume  = {22},
  number  = {24},
  pages   = {1--40},
  url     = {http://jmlr.org/papers/v22/19-665.html}
}