TY - JOUR T1 - Study of Coffee Grounds Oil Action in PVC Matrix Exposed to Gamma Radiation: Comparison of Systems in Film and Specimen Forms JO - Materials Research A1 - Silva, Lindomar Avelino da A1 - Almeida, Tainá Medeiros Bastos de A1 - Teixeira, Rebeca Valgueiro A1 - Araújo, Elmo Silvano de A1 - Aquino, Kátia Aparecida da Silva SN - 1516-1439 UL - 10.1590/1980-5373-MR-2016-0985 VL - 20 Y1 - 2017 PB - Brasil ER -