Perspectives on Federalism is a free on-line peer-reviewed journal, promoted by the Centre for Studies on Federalism.

1. Federalism and constitution: States’ participation in constitutional reform as a guarantee of the federalisation process. (A study of Spain’s unique model)
(María Reyes Pérez Alberdi/Essay)

... by the central government and means the structure of competences can be modified as necessary. In this study, we will consider how federations manage, to a greater or lesser extent, regional intervention ...