@online{toronto,
url = {https://www.physics.utoronto.ca/nonlinear/chladni.html},
urldate = {2026-06-12},
editor = {The Experimental Nonlinear Physics Group}, 
institution = {Department of Physics -- University of Toronto},
location = {Toronto, Ontario, Canada},
title = {Chladni patterns in vibrated plates},
}

@online{wiki,
  url = {https://en.wikipedia.org/wiki/Chladni%27s_law},
  urldate = {2026-06-12},
  title = {Chladni's law},
  author = {\WikipediA},
  sortname = {wikipedia},
}


@article{nolen,
author = {Derek Kverno and Jim Nolen},
url = {https://pearl-hifi.com/06_Lit_Archive/07_Misc_Downloads/135_Chladni_Patterns_in_Vibrated_Plates.pdf},
title = {Chladni patterns in vibrated plates},
  urldate = {2026-06-12},
}


@online{nolen2,
author = {Derek Kverno and Jim Nolen},
title = {A Study of Vibrating Plates},
url = {https://web.archive.org/web/20190922231130/https://www.phy.davidson.edu/StuHome/derekk/Chladni/pages/menu.htm},
urldate = {2026-06-12},
}