, 2006, From obj to maude and beyond, in K. Futatsugi, J. Jouannaud & J. Meseguer (eds.), Algebra, meaning, and computation, Dordrecht, Springer, pp. 252-280.
with Futatsugi, K. , Jouannaud, J. (eds) , 2006a, Algebra, meaning, and computation: essays dedicated to Joseph A. Goguen on the occasion of his 65th birthday, Springer, Dordrecht.