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A characterization of central extensions in the variety of quandles

Bibliographic reference Even, Valérian ; Gran, Marino ; Montoli, Andrea. A characterization of central extensions in the variety of quandles. In: Theory and Applications of Categories, Vol. 31, no.8, p. 201-216 (2 avril 2016)
Permanent URL http://hdl.handle.net/2078.1/173596