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PDF) Aspects on Economic Potential of Jiu Valley Coals | Lorint Csaba and Grigore Buia - Academia.edu
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PDF) Considerations About Economic Outlook of Jiu Valley Hard Coal Deposit | Lorint Csaba and Popescu Gheorghe - Academia.edu
MINISTERUL EDUCAŢIEI NAȚIONALE UNIVERSITATEA DIN PETROŞANI FACULTATEA DE MINE VOLUMUL LUCRĂRILOR CELUI DE-AL XVI – lea SIM
Studiul subsidenței terenurilor afectate de lucrări miniere extensive prin metode geodezice satelitare de investigație
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