References
Nicola Guarino
with Ferrario, R. (2012). Fondamenti ontologici per una scienza dei servizi. Rivista di estetica 49, pp. 227-246.
(2006)., Formal ontology, knowledge representation and conceptual modelling: old inspirations, still unsolved problems, in P. Hitzler & P. Øhrstrøm (eds.), Conceptual structures: inspiration and application, Dordrecht, Springer, pp. 1-1.