As I prepare a presentation on Romanian Poetry for Poznan in Poland, I can say that the best introduction is the article from The Princeton Encyclopedia of Poetry and Poetics. The author is Virgil Nemoianu and someone had put it in a video:
The co-editors of the book were Alex Preminger and T.V.F. Brogan. The associate editors were Frank J. Wernke, O.B. Hardison and Earl Miner. At least until the end of XX-th century it offers a good start for study.