1. Research concerning the probabilities of errors which happen in making observations, etc;Adrian R.;The Analyst; or Math. Museum,1808
2. Invariant probabilistic metrizability of fuzzy neighbourhood groups
3. Multivariate normality via conditional normality
4. Correlation in a singly truncated bivariate normal distribution
5. On the dissection of correlation surfaces;Akesson O.A.;Ark. Matematik, Astron. Fys,1916