TY  - RPRT
TI  - Comment on "Three-dimensional model for particle size segregation by shaking"
AU  - GC Barker
AU  - A Mehta
AU  - MJ Grimson
PY  - 1993
DO  - 10.1103/physrevlett.70.2194
UR  - https://pubmed.ncbi.nlm.nih.gov/10053494/
ID  - 10053494
ER  -