@article{ZNSL_2001_280_a11,
     author = {S. E. Kozlov},
     title = {Stationarity of curvature of two-dimensional totally geodesic submanifolds in the {Grassmannian} of bevectors},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {175--185},
     publisher = {mathdoc},
     volume = {280},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2001_280_a11/}
}