@article{ericsson_role_1993,
  author = {Ericsson, K. Anders and Krampe, Ralf T. and Tesch-Romer, Clemens},
  title = {The role of deliberate practice in the acquisition of expert performance},
  journal = {Psychological Review},
  year = {1993},
  volume = {100},
  number = {3},
  pages = {363--406},
  doi = {10.1037/0033-295X.100.3.363}
}

@book{williamon_musical_2004,
  editor = {Williamon, Aaron},
  title = {Musical Excellence: Strategies and Techniques to Enhance Performance},
  publisher = {Oxford University Press},
  year = {2004},
  address = {Oxford}
}

@misc{curtis_app_2026,
  author = {Pham, Alan N.},
  title = {Curtis Media Review},
  year = {2026},
  note = {Live software system, curtis.aolabs.io}
}

@misc{progress_app_2026,
  author = {Pham, Alan N.},
  title = {AO Progress Ledger},
  year = {2026},
  note = {Live longitudinal state system, progress.aolabs.io}
}