@article{Goychuk2014,
  author    = {Igor Goychuk},
  title     = {Life and death of stationary linear response in anomalous continuous time random walk dynamics},
  journal   = {Communications in theoretical physics : a series journal of the Chinese Physical Society (A)},
  volume    = {62},
  number    = {4},
  pages     = {497 -- 504},
  year      = {2014},
}