@inproceedings{g.1973the, title={The determinantal formula of Schubert calculus}, author={G. Kempf, and D. Laksov}, url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203231350172164}, booktitle={Acta Mathematica}, volume={132}, number={1}, pages={153-162}, year={1973}, }