TY - GEN AU - Ribbe,Jens AU - Baither,Dietmar AU - Schmitz,Guido AU - Divinski,Sergiy V TI - Network of porosity formed in ultrafine-grained copper produced by equal channel angular pressing SN - 0031-9007 PY - 2009///0701 N1 - Publication Type: Journal Article UR - https://doi.org/10.1103/PhysRevLett.102.165501 ER -