You will find here research publications (journal articles, book chapters, conference papers and theses) of the Astronomy and Astrophysics Group. When the publication is open access, you will be able to access the full-text of items. If access to the full-text is restricted, usually due to the copyright policies of the publisher, then metadata (information about the item) will be available; this metadata might point to the publisher's site or to an open access version at NASA ADS or at arXiv.org.If you wish to access any of the restricted items, please contact library@rri.res.in