TY - BOOK A1 - Belsley, D.A. A1 - Kuh, E. A1 - Welsch, R.E. T1 - Regression diagnostics: Identifying influential data and sources of collinearity Y1 - 1980 DO - 10.1002/0471725153 CY - Hoboken PB - John Wiley & Sons, Inc ER -