1. Brieskorn, E.: Über holomorphe ${\mathbb P}_{n}$-Bündel über ${\mathbb {P}_{1}}$. Math. Ann. 157, 343–357 (1965)
2. Eisenbud, D., Harris, J.: On varieties of minimal degree (a centennial account). Algebraic geometry, Bowdoin, 1985 (Brunswick, Maine, 1985). In: Proc. Sympos. Pure Math., vol. 46, Part 1, pp. 3–13. Amer. Math Soc., Providence, RI (1987)
3. Fulton, W., Harris, J.: Representation theory. A First Course. Graduate Texts in Mathematics 129. Springer-Verlag, New York (1991)
4. Hartshorne, R.: Algebraic geometry. Graduate Texts in Mathematics 52. Springer-Verlag, New York (1977)
5. Hong, J., Hwang, J.-M.: Characterization of the rational homogeneous space associated to a long simple root by its variety of minimal rational tangents. Algebraic Geometry in East Asia – Hanoi 2005 Advanced Studies in Pure Mathematics 50, 217–236 (2008)