1. DESULFURIZATION OF CRUMB RUBBER BY MODIFIED NATURAL ZEOLITIC CATALYSTS. Authors: DORIN BOMBOȘ, MIHAELA BOMBOȘ, EMILIAN ZAHARIA, ANDREEA-LUIZA MÎRȚ, GABRIEL VASILIEVICI.2. DEVULCANIZED CRUMB RUBBER AS BITUMEN MODIFIER. Authors: GABRIEL VASILIEVICI, ANDREEA-LUIZA MIRT, SIMONA GHIMIS, EMILIAN ZAHARIA, MIHAELA BOMBOS, DORIN BOMBOS.