@article{10_1017_S0017089501020134,
     author = {Kantrowitz, Robert and Neumann, Michael M.},
     title = {Disjointness preserving and local operators on algebras of differentiable functions},
     journal = {Glasgow mathematical journal},
     pages = {295--309},
     year = {2001},
     volume = {43},
     number = {2},
     doi = {10.1017/S0017089501020134},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089501020134/}
}