AUTHOR=Balasis Georgios TITLE=Book Review: Galactic Encounters JOURNAL=Frontiers in Astronomy and Space Sciences VOLUME=3 YEAR=2016 URL=https://www.frontiersin.org/journals/astronomy-and-space-sciences/articles/10.3389/fspas.2016.00018 DOI=10.3389/fspas.2016.00018 ISSN=2296-987X