Akram Aldroubi and Peter Basser.
  <b>Reconstruction of vector and tensor fields from sampled
  discrete data</b>.
  <i>Contemporary Mathematics of the Amer. Math. Soc.</i>, 247:1-15,
  1999.
  <A HREF="http://vis.cs.brown.edu/docs/pdf/bib/g/Aldroubi-1999-RVT.pdf.html">(pdf)</A> <A HREF="http://vis.cs.brown.edu/results/bibtex/Aldroubi-1999-RVT.bib">(bibtex:
  Aldroubi-1999-RVT)</A>.<br />