@misc{Pękala_Barbara_New_2013, author={Pękala, Barbara}, copyright={Creative Commons Attribution BY 4.0 license}, journal={Książka = Book}, address={Warszawa}, howpublished={online}, year={2013}, publisher={Instytut Badań Systemowych. Polska Akademia Nauk}, publisher={Systems Research Institute. Polish Academy of Sciences}, language={eng}, abstract={The goal of this paper is to consider properties of the composition of intervalvalued fuzzy relations which were introduced by L.A. Zadeh in 1975. Fuzzy set theory turned out to be a useful tool to describe situations in which the data are imprecise or vague. Interval-valued fuzzy set theory is a generalization of fuzzy set theory which was introduced also by Zadeh in 1965. We examine some properties of interval-valued fuzzy relations in the context of certain Atanassov’s operator, lattice operations and connections among considered properties of interval-valued fuzzy relations.}, type={Text}, title={New trends in fuzzy sets, intuitionistic fuzzy sets, generalized nets and related topics. Volume I: Foundations * Some connections among interval-valued fuzzy relations}, URL={http://rcin.org.pl./Content/198418/PDF/KS-2013-06-T1P09.pdf}, }