<http://mtaonline.net/~hheffner/HeisenbergTraps.pdf>
Also some old posts on the Szpak cell were combined and edited to make: <http://www.mtaonline.net/~hheffner/Szpak.pdf> Horace Heffner
<http://mtaonline.net/~hheffner/HeisenbergTraps.pdf>
Also some old posts on the Szpak cell were combined and edited to make: <http://www.mtaonline.net/~hheffner/Szpak.pdf> Horace Heffner