@ARTICLE{
author={Belic Milivoj R,Vujic D,Stepken A,Kaiser F,Calvo Gabriel F,Agullo-Lopez F,Carrascosa M},
year={2002},
title={Isotropic versus anisotropic modeling of photorefractive solitons},
journal={PHYSICAL REVIEW E},
volume={65},
number={6},
pages={-},
document_type={Article},
} 

@ARTICLE{
author={Motzek K,Stepken A,Kaiser F,Belic Milivoj R,Ahles M,Weilnau C,Denz Cornelia},
year={2001},
title={Dipole-mode vector solitons in anisotropic photorefractive media},
journal={OPTICS COMMUNICATIONS},
volume={197},
number={1-3},
pages={161-167},
document_type={Article},
} 

@ARTICLE{
author={Stepken A,Kaiser F,Belic Milivoj R},
year={2000},
title={Anisotropic interaction of three-dimensional spatial screening solitons},
journal={JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS},
volume={17},
number={1},
pages={68-77},
document_type={Article},
} 

@ARTICLE{
author={Belic Milivoj R,Stepken A,Kaiser F},
year={2000},
title={Spatial screening solitons as particles},
journal={PHYSICAL REVIEW LETTERS},
volume={84},
number={1},
pages={83-86},
document_type={Article},
}