no. 3
A universal construction in Goursat categories
Cahiers de Topologie et Géométrie Différentielle Catégoriques, Tome 49 (2008) no. 3, pp. 196-208. 
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Gran, Marino; Rodelo, Diana. A universal construction in Goursat categories. Cahiers de Topologie et Géométrie Différentielle Catégoriques, Tome 49 (2008) no. 3, pp. 196-208. http://archive.numdam.org/item/CTGDC_2008__49_3_196_0/

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