GOST R 50779.21-1996 Statistical methods. Determination rules and methods for calculation of statistical characteristics based on sample data. Part 1. Normal distribution
2004GOST R 50779.21-2004 Statistical methods. Determination rules and methods for calculation of statistical characteristics based on sample data. Part 1. Normal distribution
1996GOST R 50779.21-1996 Statistical methods. Determination rules and methods for calculation of statistical characteristics based on sample data. Part 1. Normal distribution