@article{IM2_2008_72_3_a2,
     author = {N. Cohen and S. Pinzon},
     title = {An extension of the (1,2)-symplectic property for $f$-structures on flag manifolds},
     journal = {Izvestiya. Mathematics },
     pages = {479--496},
     publisher = {mathdoc},
     volume = {72},
     number = {3},
     year = {2008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2008_72_3_a2/}
}