@article{10_4153_CJM_1967_004_9,
     author = {Darsow, William F.},
     title = {Signal {Metrics}},
     journal = {Canadian journal of mathematics},
     pages = {28--39},
     year = {1967},
     volume = {19},
     number = {1},
     doi = {10.4153/CJM-1967-004-9},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1967-004-9/}
}