@article{Zarnowski2001,
  author    = {{Zarnowski, Roger E.}},
  title     = {{Generalized inverses and the total stopping time of Collatz sequences}},
  journal   = {{Linear and Multilinear Algebra}},
  year      = {{2001}},
  volume    = {{49}},
  pages     = {{115--130}},
  note      = {{MR 2003b:15011}},
}