@Article{Ward:77,
  author =	 {Ward, R. C.},
  title = 	 {Numerical Computation of the Matrix Exponential With
                  Accuracy Estimate},
  journal = 	 {{SIAM} Journal on Numerical Analysis},
  year = 	 1977,
  volume = 	 14,
  pages = 	 {600-610}
}

@Article{MolerVanLoan:78,
  author = 	 {Moler, C. and Van~{L}oan, C.},
  title = 	 {Nineteen dubious ways to compute the exponential of a matrix},
  journal = 	 {{SIAM} Review},
  year = 	 1978,
  volume = 	 20,
  pages = 	 {801-836}
}

@Manual{Matrix-pkg,
  title =	 {Matrix: A Matrix package for R},
  author =	 {Douglas Bates and Martin Maechler},
  year =	 {2010},
  note =	 {R package version 0.999375-38},
  language = 	 {english}
}

@Book{octave,
  author = 	 {Eaton, J. W.},
  title =	 {{GNU} Octave Manual},
  publisher =	 {Network Theory Limited},
  year =	 2002,
  ISBN =	 {0-9541617-2-6},
  url =		 {http://www.octave.org},
  language =	 {english}
}

@Book{Higham:2008,
  author = 	 {Higham, N.~J.},
  year = 	 2008,
  title = 	 {Functions of Matrices: Theory and Computation},
  publisher = 	 {Society for Industrial and Applied Mathematics},
  address = 	 {Philadelphia, PA, USA}
}

@comment{This is *LATER* than  Higham(2008) - and *NOT* yet implemented in expm:}
@article{Al-mohy_Higham:2009,
  author =	 {Awad H. Al-Mohy and Nicholas J. Higham},
  year =	 2009,
  title =	 {A New Scaling and Squaring Algorithm for the Matrix
                  Exponential},
  journal =	 {SIAM Journal on Matrix Analysis and Applications},
  volume =	 31,
  number =	 3,
  pages =	 {970-989},
  publisher =	 {SIAM},
  keywords =	 {matrix exponential; matrix function; scaling and squaring
                  method; Pade approximation; backward error analysis;
                  matrix norm estimation; overscaling; MATLAB; expm},
  url =		 {http://link.aip.org/link/?SML/31/970/1},
  doi =		 {10.1137/09074721X}
}
