Resumen de Fano manifolds whose elementary contractions are smooth P^1-fibrations: a geometric characterization of flag varieties
Gianluca Occhetta, Luis Eduardo Solá Conde 
, Kiwamu Watanabe, Jaroslaw A. Wisniewski
http://annaliscienze.sns.it/public/pdf/abstracts/2017/5-Abstract_Occhetta_et_al.pdf
