Symplectic Geometry And Differential Equations
Crossref DOI link: https://doi.org/10.1007/978-3-319-69850-2_20
Published Online: 2018-06-20
Published Print: 2018
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Hörmander, Lars
License valid from 2018-01-01