Carmen Espejo y Francisco Baena: “A critique of periodicity”

A Critique of Periodicity in Early Modern Journalism. The First Spanish Serial Gazette: Gazeta de Roma in Valencia (1618–1620)
Carmen Espejo and Francisco Baena (2015).
European Review,
“>Volume 23
, Issue03, July 2015, pp 341-353
http://journals.cambridge.org/action/displayAbstract?aid=9732199