TY - RPRT TI - Elastic recovery and surface area changes in compacted powder systems. AU - N A Armstrong AU - R F Haines-Nutt PY - 1972 DO - 10.1016/0032-5910(74)80054-9 UR - https://pubmed.ncbi.nlm.nih.gov/4144857/ ID - 4144857 ER -