1. R.R. Panko, Spreadsheet errors: what we know, what we think we can do, in: Symposium of the European Spreadsheet Risks Interest Group (EuSpRIG), 2000.
2. Estimating the numbers of end users and end user programmers;Scaffidi,2005
3. Quantitative and qualitative errors in spreadsheet development;Teo,1997
4. Quality control in spreadsheets: a software engineering-based approach to spreadsheet development;Rajalingham,2000
5. Uncovering effects of programming paradigms: errors in two spreadsheet systems;Tukiainen,2000