Son of Saul has the same close-ups with blurry background. Also the use of noise in the shed reminds of the noise in the gas chambers.
The director's quotes here convinced me to watch Idi I Smotri
http://www.imdb.com/board/21841577/bio?ref_=nm_dyk_qt_sm#quotes

He also used extremely long shots with handheld cameras. His films are more arch than sincere, but made in a style similar to this.
Also, see the new film Sicario for amazing visual storytelling.

You could try Andrei Tarkovsky's
Ivan's Childhood
from 1962.
This also shows the terror of the war (although not as gruesome as this one) through the eyes of a child. Tarkovsky lingers the shot, uses a lot of the woods and mud and has the same beauty in composition of the shots as
Come and See
. I would guess Klimov must've been inspired by Tarkovsky when he made this film.