@ARTICLE{
author={Angst M|,Di Castro D|,Eshchenko DG|,Khasanov Rustem|,Kohout S|,Savic Ilija M|,Shengelaya A|,Bud 'ko SL|,Canfield PC|,Jun J|,Karpinski J|,Kazakov SM|,Ribeiro RA|,Keller H|},
year={2004},
title={Anisotropy and internal-field distribution of MgB2 in the mixed state at low temperatures},
journal={PHYSICAL REVIEW B},
volume={70},
number={22},
pages={-},
document_type={Article},
} 

@ARTICLE{
author={Di Castro D|,Angst M|,Eshchenko DG|,Khasanov Rustem|,Roos J|,Savic Ilija M|,Shengelaya A|,Bud 'ko SL|,Canfield PC|,Conder K|,Karpinski J|,Kazakov SM|,Ribeiro RA|,Keller H|},
year={2004},
title={Absence of a boron isotope effect in the magnetic penetration depth of MgB2},
journal={PHYSICAL REVIEW B},
volume={70},
number={1},
pages={-},
document_type={Article},
} 

@ARTICLE{
author={Khasanov Rustem|,Shengelaya A|,Morenzoni Elvezio|,Angst M|,Conder K|,Savic Ilija M|,Lampakis D|,Liarokapis E|,Tatsi A|,Keller H|},
year={2003},
title={Site-selective oxygen isotope effect on the magnetic-field penetration depth in underdoped Y0.6Pr0.4Ba2Cu3O7-delta},
journal={PHYSICAL REVIEW B},
volume={68},
number={22},
pages={-},
document_type={Article},
}