Dumitrescu, C. (1986). Treillis duals. Applications aux ensembles flous: Dual lattices. Applications to fuzzy set theory.
Anal. Numér. Théor. Approx.
,
15
(2), 111-116.
https://ictp.acad.ro/jnaat/journal/article/view/1986-vol15-no2-art3