@article{MM2_1994__82_1_155927,
     author = {Gerald Schwarz and Chen-bo Zhu},
     title = {Invariant differential operators on symplectic {Grassmann} manifolds.},
     journal = {Manuscripta mathematica},
     pages = {191--206},
     publisher = {mathdoc},
     volume = {82},
     number = {1},
     year = {1994},
     zbl = {0813.43006},
     url = {http://geodesic.mathdoc.fr/item/MM2_1994__82_1_155927/}
}