the visualisation concept suggested by Jean Véronis on his blog, and the
collaboration which followed to study the concept and provide a software to automatically compute it according
to many sets of parameters.
This collaboration was partially funded by the ANR projet PhylAriane,
which will benefit from the use of the visualisation in bioinformatics.
Many advises and examples were useful in the design and use of tree clouds. More details
about those are given in the Acknowledgement section of these twoarticles,
and in the version history of TreeCloud.