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<i>Gaia</i> Data Release 2

Context. We present the second Gaia data release, Gaia DR2, consisting of astrometry, photometry, radial velocities, and information on astrophysical parameters and variability,...

2018 Astronomy and Astrophysics 8216 citations

An Introduction to Qualitative Research

he definitive guide to the full qualitative research process, from design to dissemination, this is everything you need to understand how good quality research is produced, and ...

1998 8115 citations

The Death and Life of Great American Cities

1 Introduction Part One: The Peculiar Nature of Cities 2 The uses of sidewalks: safety 3 The uses of sidewalks: contact 4 The uses of sidewalks: assimilating children 5 The uses...

2015 Readings in Planning Theory 8056 citations