@ARTICLE{
author={Bokan Neda P,Matzeu P,Rakic Zoran P},
year={2006},
title={Holonomy, geometry and topology of manifolds with Grassmann structure},
journal={Non-Euclidean Geometries},
volume={581},
number={},
pages={385-405},
document_type={Proceedings Paper},
} 

@ARTICLE{
author={Bokan Neda P,Matzeu P,Rakic Zoran P},
year={2005},
title={Geometric quantities of manifolds with Grassmann structure},
journal={NAGOYA MATHEMATICAL JOURNAL},
volume={180},
number={},
pages={45-76},
document_type={Article},
}