Does anyone know the most efficient way I can search the Trieste departures

from 1914? They appear to only be available in Vienna at the State Archives

or at the Archive in Trieste Italy. I'm particularly interested in finding a
family departure record that should be in March of 1914 >from Trieste to
Buenos Aires. These would seem to be of interest for Ancestry.com or
FamilySearch (LDS) I certainly wish these were readily available to search.