TY - RPRT TI - Composition analysis of polybutenes. AU - E M BARRALL AU - R S PORTER AU - J F JOHNSON PY - 1963 DO - 10.1016/s0021-9673(01)80894-3 UR - https://pubmed.ncbi.nlm.nih.gov/13969496/ ID - 13969496 ER -