Co-author of Atlasul lingvistic romān (Romanian Linguistic Atlas)
From 1949 to 1954, Petrovici worked on literary and cultural problems of Transylvania and colloborated on several journals published in Cluj-Napoca. He was honored with membership in several scientific academies and societies, and was honored with various titles such as "Om de ştiinţă emerit" ("Man of science emeritus") and "Premiul de stat" ("The State Prize").