TY  - RPRT
TI  - Models for the migration of paraffinic additives in polythylene 
AU  - Smith, L E
AU  - Sanchez, I C
AU  - Chang, S S
AU  - McCrackin, F L
PY  - 1979
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 79-1598
DO  - 10.6028/NBS.IR.79-1598
ER  -