%0 Journal Article %A Vesna Celakoska-Jordanova %T On Quaternary Associative Operations %J Mathematica Moravica %D 2007 %P 17 - 25 %V 11 %N 1 %I mathdoc %U https://geodesic-test.mathdoc.fr/item/MM3_2007_11_1_a2/ %F MM3_2007_11_1_a2