1 INTRODUCTION

2 THE PRISTINE SURVEY

3 SPECTROSCOPIC FOLLOW-UP
3.1 Data reduction and analysis
3.2 Spectral analysis

4 SELECTION CRITERIA
4.1 SDSS photometry
4.2 Infrared magnitudes from WISE and 2MASS
4.3 Applying a regularized regression technique

5 SPECTROSCOPIC RESULTS

6 DISCUSSION
6.1 Purity and success rates of the selection
6.2 Comparison to other surveys
6.3 Future follow-up strategy

7 CONCLUSIONS