BibTex format
@article{Helm:2008:10.1090/S0002-9939-08-08959-4,
author = {Helm, D and Osserman, B},
doi = {10.1090/S0002-9939-08-08959-4},
journal = {PROCEEDINGS OF THE AMERICAN MATHEMATICAL SOCIETY},
pages = {3383--3390},
title = {Flatness of the linked Grassmannian},
url = {http://dx.doi.org/10.1090/S0002-9939-08-08959-4},
volume = {136},
year = {2008}
}