@Article{ GutManMor18, author = { Gutt, Jan and Manno, Gianni and Moreno, Giovanni }, title = { Geometry of Lagrangian Grassmannians and nonlinear PDEs }, journal = { Banach Centre Publications }, year = { 2019 }, pages = { }, URL = { https://gecogedi.dimai.unifi.it/paper/380/ }, note = { cvgmt preprint} }