@article{oai:repository.dl.itc.u-tokyo.ac.jp:00040378,
 author = {Hauser, Herwig},
 issue = {1},
 journal = {Journal of mathematical sciences, the University of Tokyo},
 month = {},
 note = {application/pdf},
 pages = {239--250},
 title = {On the Lie Algebra $Θ(X)$ of Vector Fields on a Singularity},
 volume = {1},
 year = {1994}
}