Badia G., Costa V., Dellunde P., Noguera Carles :  Syntactic characterizations of classes of first-order structures in mathematical fuzzy logic , Soft Computing vol.23, 7 (2019), p. 2177-2186 [2019] Download Download DOI: 10.1007/s00500-019-03850-6

Badia G., Noguera Carles :  Fraisse classes of graded relational structures , Theoretical Computer Science vol.737, 1 (2018), p. 81-90 [2018] Download DOI: 10.1016/j.tcs.2018.05.010