TY - RPRT TI - A comparative study of the structure and mechanical properties of polyethylene films used in heavy lift balloons AU - Khoury, F AU - Crissman, J M AU - Barnes, J D AU - Fanconi, B M AU - Wagner, H L AU - Guttman, C M AU - Maurey, J R AU - Harding, C A AU - Bolz, L H PY - 1986 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 86-3353 DO - 10.6028/NBS.IR.86-3353 ER -