@inproceedings{GHL14,
 author = {Giesbrecht, Mark and Heinle, Albert and Levandovskyy, Viktor},
 title = {Factoring Linear Differential Operators in $n$ Variables},
 booktitle = {Proceedings of the 39th International Symposium on Symbolic and Algebraic Computation},
 series = {ISSAC '14},
 year = {2014},
 isbn = {978-1-4503-2501-1},
 location = {Kobe, Japan},
 pages = {194--201},
 url = {http://doi.acm.org/10.1145/2608628.2608667},
 doi = {10.1145/2608628.2608667},
 acmid = {2608667},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {factorization, linear partial differential operators, non-commutative algebra, singular, weyl algebras},
}