1. Handbook of mathematical functions,1964
2. Numerical methods;Bachvalov,1987
3. Method of approximate calculation of electrostatic conical fields;Baranova;Zhurnal Tekhnicheskoi Fiziki,1988
4. Calculation of parameters of conical systems used for analysis of charged particles in energy and angle;Baranova;Soviet Technical Physics Letters,1988
5. Random data: Analysis and measurement procedures;Bendat,1971