1. Lecture Notes in Mathematics;P. Abramenko,1996
2. Adamovich, A.M.: The submodule lattices of Weyl modules of symplectic groups with fundamental highest weights. Vestn. Mosk. Univ. Ser. I Mat. Mekh. (2), 7–10, 112 (1986)
3. Blok, R.J.: On geometries related to buildings. Ph.D. thesis, Delft University of Technology (1999). Supervisor: Prof. Dr. A.E. Brouwer
4. Trends Math.;R.J. Blok,1998
5. Blok, R.J., Brouwer, A.E.: Spanning point-line geometries in buildings of spherical type. J. Geom. 62, 26–35 (1998)