Reference:
  Author: Fernando Izquierdo-Carrasco and Nikolaos Alachiotis and Simon Berger and Tomas Flouri and Solon P. Pissis and Alexandros Stamatakis
  Title: A Generic Vectorization Scheme and a GPU Kernel for the Phylogenetic Likelihood Library
  Journal: "Conference proceedings: Parallel and Distributed Processing Symposium Workshops"
  Year: 2013
  DOI: 10.1109/IPDPSW.2013.103
  URL: http://ieeexplore.ieee.org/document/6650928/
