https://commons.ru.ac.za/vital/access/manager/Index en-us 5 The principle of inclusion-exclusion and möbius function as counting techniques in finite fuzzy subsets https://commons.ru.ac.za/vital/access/manager/Repository/vital:5413 Wed 12 May 2021 18:50:48 SAST ]]> Counting of finite fuzzy subsets with applications to fuzzy recognition and selection strategies https://commons.ru.ac.za/vital/access/manager/Repository/vital:5431 Wed 12 May 2021 17:26:03 SAST ]]>