1. The stalactite plot for the detection of multivariate outliers;Atkinson;Statist. Comput.,1993
2. A new graphical method for detecting single and multiple outliers in univariate and multivariate data;Bacon-Shone;Appl. Statist.,1987
3. Outliers in Statistical Data;Barnett,1978
4. Outliers in Statistical Data;Barnett,1994
5. Multivariate outlier identification with high breakdown point;Becker,1992