11 Acknowledgments
Writing a large review paper is not an easy task and it would not have been possible to accomplish this
goal without having a good interaction with our colleagues, whom we have been working with in our
Institutions. To this regard, we like to acknowledge the many discussions (more or less “heated”)
we had with and the many advices and comments we had from all of them, particularly from
B. Bavassano and P. Veltri. We also like to acknowledge the use of plasma and magnetic field data
from Helios spacecraft to freshly produce some of the figures shown in the present review. In
particular, we like to thank H. Rosenbauer and R. Schwenn, PIs of the plasma experiment,
and F. Mariani and N.F. Ness, PIs of the second magnetic experiment on board Helios. We
thank A. Pouquet, H. Politano, and V. Antoni for the possibility we had to compare solar
wind data with both high-resolution numerical simulations and laboratory plasmas. Finally, we
ought special thanks to E. Marsch and S.K. Solanki for giving us the opportunity to write this
review.
