@ARTICLE{
author={Popa Alexandru,Sasca Viorel,Kis Erne E,Marinkovic-Neducin Radmila P,Halasz J},
year={2008},
title={Highly dispersed heteropolyacids supported on modified MCM 41 mesoporous materials},
journal={JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS},
volume={10},
number={6},
pages={1401-1407},
document_type={Article},
} 

@ARTICLE{
author={Popa Alexandru,Sasca Viorel,Kis Erne E,Marinkovic-Neducin Radmila P,Halasz J},
year={2007},
title={Molecular sieves SBA-15 type doped with heteropolyacids: textural and structural properties},
journal={JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS},
volume={9},
number={11},
pages={3645-3650},
document_type={Article},
} 

@ARTICLE{
author={Popa Alexandru,Sasca Viorel,Kis Erne E,Marinkovic-Neducin Radmila P,Bokorov Milos T,Halasz J},
year={2006},
title={Structure and texture of some Keggin type heteropolyacids supported on silica and titania},
journal={JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS},
volume={8},
number={3},
pages={1317-1322},
document_type={Article},
} 

@ARTICLE{
author={Popa Alexandru,Sasca Viorel,Kis Erne E,Marinkovic-Neducin Radmila P,Bokorov Milos T,Halasz J},
year={2005},
title={Structure and texture of some Keggin type heteropolyacids supported on silica and titania},
journal={JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS},
volume={7},
number={6},
pages={3169-3177},
document_type={Article},
}