@article{MS2_1972__30_166244,
     author = {Anders Melin},
     title = {A {Remark} on {Invariant} {Pseudo-Differential} {Operators.}},
     journal = {Mathematica Scandinavica},
     pages = {290--296},
     publisher = {mathdoc},
     volume = {30},
     year = {1972},
     zbl = {0258.22013},
     url = {http://geodesic.mathdoc.fr/item/MS2_1972__30_166244/}
}