@ARTICLE{
author={Zujovic Zoran D,Zakrzewska Joanna S,Begovic Nebojsa N,Steuernagel S},
year={2001},
title={Cross depolarization: Two-dimensional heteronuclear dipolar powder pattern},
journal={APPLIED MAGNETIC RESONANCE},
volume={20},
number={4},
pages={483-488},
document_type={Article},
} 

@ARTICLE{
author={Zujovic Zoran D,Zakrzewska Joanna S,Begovic Nebojsa N,Vucelic Dusan,Steuernagel S},
year={2001},
title={An extension of cross-depolarization experiment: Two-dimensional NMR powder pattern},
journal={APPLIED MAGNETIC RESONANCE},
volume={20},
number={4},
pages={461-471},
document_type={Article},
}