Zimmermann, Donald W. (2004). "A note on preliminary tests of equality of variances". British Journal of Mathematical and Statistical Psychology. 57 (1): 173–81. doi:10.1348/000711004849222. PMID15171807.
Zimmermann, Donald W. (2004). "A note on preliminary tests of equality of variances". British Journal of Mathematical and Statistical Psychology. 57 (1): 173–81. doi:10.1348/000711004849222. PMID15171807.