== See also ==* Kell factor== External links ==* Keith J. Worsley, "An unbiased estimator for the roughness of a multivariate Gaussian random field", Technical report, 2000 July.
== Примечания ==== Внешние ссылки ==* Resel - определение термина* Keith J. Worsley, "An unbiased estimator for the roughness of a multivariate Gaussian random field", Technical report, 2000 July.