| Autori | Titlu | Publicatia | An aparitie |
| IANCU OVIDIU GABRIEL SI ALTII | MINERALOGICAL ASPECTS CONCERNING THE AGATES FROM GURASADA | ANALELE UNIVERSITATII BUCURESTI,XLVIII, 36-38 | 1999 |
| IANCU OVIDIU GABRIEL SI ALTII | THE MICROSTRUCTURE OF AGATES FROM TECHEREU AREA | ROMANIAN JOURNAL OF MINERALOGY, 79/1, 39 | 1999 |