@article{Matkowski:1984,
  author  = "J. Matkowski and J. Miķ",
  title   = "On a characterization of Lipschitzian operators of substitution in the space ${\rm BV}\langle a$, $b\rangle$",
  journal = "Mathematische Nachrichten",
  volume  = "Vol. 117",
  pages   = "155--159",
  year    = "1984",
}