@article{10_4153_CJM_1990_036_1,
     author = {Baker, John A.},
     title = {Functional {Equations,} {Distributions} and {Approximate} {Identities}},
     journal = {Canadian journal of mathematics},
     pages = {696--708},
     year = {1990},
     volume = {42},
     number = {4},
     doi = {10.4153/CJM-1990-036-1},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1990-036-1/}
}