@article{oai:repository.dl.itc.u-tokyo.ac.jp:00040083,
 author = {BENMERIEM, Khaled and BOUZAR, Chikh},
 issue = {4},
 journal = {Journal of mathematical sciences, the University of Tokyo},
 month = {Feb},
 note = {application/pdf},
 pages = {427--447},
 title = {Ultraregular generalized functions of Colombeau type},
 volume = {15},
 year = {2009}
}