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Moawad El-Fallah Abd El-Salam , 2011. Retracted: The Efficiency of Some Alternative Ridge Estimators for Seemingly Unrelated Regressions. Asian Journal of Mathematics & Statistics, 4: 128-139.
DOI: 10.3923/ajms.2011.128.139
URL: https://scialert.net/abstract/?doi=ajms.2011.128.139
DOI: 10.3923/ajms.2011.128.139
URL: https://scialert.net/abstract/?doi=ajms.2011.128.139