@incollection{joosten2010program,
  title = "Program-size versus Time complexity, Slowdown and speed-up phenomena in the micro-cosmos of small Turing machines",
  author = "J.J. Joosten, F. Soler-Toscano, H. Zenil",
  year = "2010",
  booktitle = "Proceedings of Physics and Computation 2010, CAMIT, 3rd International Workshop on Physics and Computation",
  editor = "H. Guerra (ed)",
}