@article{10_4153_CMB_1975_132_3,
     author = {Lightstone, A. H. and Wong, Kam},
     title = {Dirac {Delta} {Functions} {Via} {Nonstandard} {Analysis}},
     journal = {Canadian mathematical bulletin},
     pages = {759--762},
     year = {1975},
     volume = {18},
     number = {5},
     doi = {10.4153/CMB-1975-132-3},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1975-132-3/}
}