@article{10_4171_dm_890,
     author = {Anton Savin and Elmar Schrohe},
     title = {An index formula for groups of isometric linear canonical transformations},
     journal = {Documenta mathematica},
     pages = {983--1013},
     year = {2022},
     volume = {27},
     doi = {10.4171/dm/890},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/dm/890/}
}