In the second half of the 20th century, thanks to the works and publications of Guglielmo Gatti, Lucos Cozza, and Emilio Rodríguez Almeida, several fragments of the plan have been identified and located.
W drugiej połowie XX wieku, dzięki pracom i publikacjom Guglielmo Gattiego, Lucosa Cozzy i Emilia Rodrigueza Almeidy, zidentyfikowano i zlokalizowano niektóre fragmenty planu.