
Publication
CONSIDERATIONS ON THE INFLUENCE OF EXTRACTION TECHNOLOGY OF LIGNITE IN OPEN PITS OVER THE PRODUCTION QUALITY
(Stef92 Technology, 2012-6-18, Maria Lazar)
Earth and Planetary Sciences2012
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(Stef92 Technology, 2012-6-18, Maria Lazar)

(Stef92 Technology, 2012-6-18, Maria Lazar)