1. INTERNATIONAL SYMPOSIUM ON EARTH SYSTEM SCIENCES (ISESS) 2004, ISTANBUL-TURKEY. Authors: VLAD A. CODREA, OVIDIU BARBU.2. NEW DATA ON THE MINERALOGY OF THE SALT DEPOSIT FROM SLăNIC PRAHOVA (ROMANIA). Authors: NICOLAE HAR, OVIDIU BARBU, VLAD A. CODREA, IUSTINIAN PETRESCU.3. THE IV-TH SYMPOSIUM OF THE ROMANIAN SOCIETY OF PALEONTOLOGISTS (CLUJ-NAPOCA, SEPTEMBER 5-7, 2003). Authors: VLAD A. CODREA, OVIDIU BARBU.4. ADDITIONAL TAXA WITHIN THE SILICEOUS MICROFLORISTIC ASSEMBLAGES FROM THE BĀRZĂVIŢA II QUARRY (ARAD COUNTY, ROMANIA). Authors: OVIDIU BARBU, VLAD A. CODREA.5. THE IMPACT OF THE BITUMINOUS COAL COMBUSTION FROM THE THERMOELECTRIC POWER PLANT FROM PAROSENI ON THE ENVIRONMENT OF JIU VALLEY. Authors: MIRCEA REBRISOREANU, EUGEN TRAISTA, ARONEL MATEI, OVIDIU BARBU, CODREA VLAD.