@article{10_1017_S0017089520000257,
     author = {SCH\"UTZ, DIRK},
     title = {A {FAST} {ALGORITHM} {FOR} {CALCULATING} {S-INVARIANTS}},
     journal = {Glasgow mathematical journal},
     pages = {378--399},
     year = {2021},
     volume = {63},
     number = {2},
     doi = {10.1017/S0017089520000257},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089520000257/}
}