@Article{SCC.Johnson1970,
  author    = {Johnson, C. R.},
  title     = {Positive definite matrices},
  journal   = {Amer. Math. Mon.},
  year      = {1970},
  volume    = {77},
  number    = {3},
  pages     = {259--264},
  owner     = {jklotz},
  timestamp = {2012.05.14},
}