AUTHOR=Marziani Paola 

TITLE=Grand challenges in Milky Way and galaxies

JOURNAL=Frontiers in Astronomy and Space Sciences

VOLUME=2

YEAR=2015

URL=https://www.frontiersin.org/journals/astronomy-and-space-sciences/articles/10.3389/fspas.2015.00001

DOI=10.3389/fspas.2015.00001

ISSN=2296-987X