For those ho inspect the  4 th Concile from year 451 and some writings of Nestorius i found a book  write by Friedrich Loofs:

“Nestorius and his place  in the history of christian doctrine “.

Please note: the book “Nestoriana” that cover the same subject, from the same author, is still unavaible.

(Pentru o introducere doar în versiunea română asupra Sinodului 4 Ecumenic privită bibliografic prin prisma studiului părintelui Dumitru Stăniloae aici)

Nestorius and his place in the history of Christian doctrine (1914)