1. DETERMINATION OF PETROLEUM HYDROCARBONS CONTENT IN SOILS FROM SUPLACU DE BARCĂU, ROMANIA. Authors: LOREDANA MIHAELA ŞEUTE, DAN FLORIN COSTIN, CARMEN ANDREEA ROBA, MARIA LUCIA BIZĂU-CÂRSTEA.2. CHEMICAL PARAMETERS OF BLOAJA VALLEY WATER AFFECTED BY ACID ROCK DRAINAGE, BĂIUȚ MINING AREA, ROMANIA. Authors: DAN FLORIN COSTIN.