I think this http://www.bioone.org/doi/abs/10.2317/E-39.1 http://www.bioone.org/doi/abs/10.2317/E-39.1 is the paper they mention, sadly though I can't find a ve

I think this http://www.bioone.org/doi/abs/10.2317/E-39.1 http://www.bioone.org/doi/abs/10.2317/E-39.1 is the paper they mention, sadly though I can't find a version of it without the pay wall.