@Misc{BVMC:269734,
author = {Matthieu, Pierre},
title = {Summa Constitutionum Summorum Pontificum et rerum in Ecclesia Romana gestarum à Gregorio IX vsque ad Sixtum V},
url = {http://www.cervantesvirtual.com/obra/summa-constitutionum-summorum-pontificum-et-rerum-in-ecclesia-romana-gestarum-a-gregorio-ix-vsque-ad-sixtum-v}
}