Stem penni$ (all stems)
3 papers:
 ITiCSE-WGR-2004-Henderson ITiCSE-WGR-2004-Henderson
- Penny piles (PBH), pp. 22–24.
 SIGAda-1999-Lowe99a SIGAda-1999-Lowe99a
- Pinching pennies while losing dollars (TL), pp. 183–193.
 ILPS-1997-MonteliusM #using ILPS-1997-MonteliusM #using
- Using SimICS to Evaluate the Penny System (JM, PSM), pp. 133–147.










