@inproceedings{d.2007characteristic,
title={CHARACTERISTIC CLASSES OF FOLIATED SURFACE BUNDLES WITH AREA-PRESERVING HOLONOMY},
author={D. Kotschick, and S. Morita},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160908192900209979664},
booktitle={Journal of Differential Geometry},
volume={75},
pages={273-302},
year={2007},
}
D. Kotschick, and S. Morita. CHARACTERISTIC CLASSES OF FOLIATED SURFACE BUNDLES WITH AREA-PRESERVING HOLONOMY. 2007. Vol. 75. In Journal of Differential Geometry. pp.273-302. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160908192900209979664.