References
- Zade , LA . 1974 . “ Fundamentals of a new approach to analysis of complex systems and processes of making decisions ” . In ‘Mathematics today’ , 5 – 49 . Moscow : Publ Znanie .
- L'ov , N S and Gladkov , E A . 1982 . ‘Automatics and automation of welding process’ , Moscow : Publ Mashinostroenie .
- Dyubua , D and Prad , A . 1990 . ‘Theory of possibilities. Applications to representation of knowledge in informatics’ , Publ Radio Svyaz Moscow .