@article{JOLT_2013_23_4_a14,
     author = {Hironao Kato},
     title = {Castling {Transformations} of {Projective} {Structures}},
     journal = {Journal of Lie Theory},
     pages = {1129--1160},
     year = {2013},
     volume = {23},
     number = {4},
     url = {http://geodesic.mathdoc.fr/item/JOLT_2013_23_4_a14/}
}