| 000 | 00505nam a2200157Ia 4500 | ||
|---|---|---|---|
| 008 | 240729s9999 xx 000 0 und d | ||
| 022 | _a2738-7151 | ||
| 245 | 0 | _aSustainable Extraction and Processing of Raw Materials Journal | |
| 260 | _aBulgaria | ||
| 260 | _bUniversity of Mining and Geology “St. Ivan Rilski†| ||
| 650 | _a Mining engineering. Metallurgy | ||
| 650 | _aTechnology | ||
| 856 | _uhttps://doaj.org/toc/4d41278f3fce4d9f807eb05440c10ef7 | ||
| 942 | _2ddc | ||
| 942 | _cDOAJEJ | ||
| 999 |
_c67259 _d67259 |
||
| 945 |
_a1 _bMadushi Gamage _c1 _dMadushi Gamage |
||