@article{10_4171_dm_198,
     author = {M.P. Dussan and M.A. Magid},
     title = {Time-like isothermic surfaces associated to {Grassmannian} systems},
     journal = {Documenta mathematica},
     pages = {527--549},
     year = {2005},
     volume = {10},
     doi = {10.4171/dm/198},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/dm/198/}
}