AUTHOR=Iorio Lorenzo TITLE=Is the Recently Proposed Mars-Sized Perturber at 65–80 AU Ruled Out by the Cassini Ranging Data? JOURNAL=Frontiers in Astronomy and Space Sciences VOLUME=Volume 4 - 2017 YEAR=2017 URL=https://www.frontiersin.org/journals/astronomy-and-space-sciences/articles/10.3389/fspas.2017.00028 DOI=10.3389/fspas.2017.00028 ISSN=2296-987X ABSTRACT=The full-text of this article will be available soon.