@misc{Atanassov_Krassimir_Todorov_(1954–_)_Developments_2010,
 author={Atanassov, Krassimir Todorov (1954– )},
 copyright={Creative Commons Attribution BY 4.0 license},
 address={Warszawa},
 journal={Książka = Book},
 howpublished={online},
 year={2010},
 publisher={Instytut Badań Systemowych. Polska Akademia Nauk},
 publisher={Systems Research Institute. Polish Academy of Sciences},
 language={eng},
 abstract={In [6] the author introduced a set of new negations and implications over IFSs. They generalize the classical negation over IFSs, but on the other hand, they have some non-classical properties.},
 type={Text},
 title={Developments in fuzzy sets, intuitionistic fuzzy sets, generalized nets and related topics. Volume I: Foundations * Intuitionistics fuzzy subtractions - 'ε,η and- ''ε,η},
 URL={http://www.rcin.org.pl/Content/198445/PDF/KS-2010-05-T1P01.pdf},
}