@article{1103921281,
author = {Powers, Robert T. and Price, Geoffrey},
title = {Derivations vanishing on $S(\infty)$},
journal = {Comm. Math. Phys.},
volume = {83},
number = {1},
year = {1982},
pages = { 439-447},
language = {en},
url = {http://dml.mathdoc.fr/item/1103921281}
}
Powers, Robert T.; Price, Geoffrey. Derivations vanishing on $S(\infty)$. Comm. Math. Phys., Tome 83 (1982) no. 1, pp. 439-447. http://gdmltest.u-ga.fr/item/1103921281/