Rok 2006

1. Andrzejewski, Paweł; Glanc, Barbara, A note on the commutativity of rings, Demonstratio Math. 39 (2006), no. 2, 299–303. 

2. Szmuksta-Zawadzka, Maria; Zawadzki, Jan, Forecasting on the Basis of ‘Parsimonious’ Hierarchical Models, Dynamic Econometric Models Vol.7- Nicolaus Copernicus University - Toruń - 2006, 37–48.