Ana Magazinius Robert Feldt Confirming Distortional Behaviors in Software Cost Estimation Practice. 411-418 2011 EUROMICRO-SEAA http://doi.ieeecomputersociety.org/10.1109/SEAA.2011.61 conf/euromicro/2011 db/conf/euromicro/euromicro2011.html#MagaziniusF11