@article{atimecausalandtimerecursivescale,
  title = {A time-causal and time-recursive scale-covariant scale-space representation of temporal signals and past time},
  author = {Tony Lindeberg},
  year = {2022},
  eprint = {2202.09209},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2202.09209v4},
}