1 INTRODUCTION

2 OBSERVATIONS, REDUCTION AND ANALYSIS
2.1 APEX 870 μm catalogue
2.2 VLA 1.4-GHz catalogue
2.3 Spitzer MIPS catalogues
2.4 Spitzer IRAC catalogues

3 IDENTIFYING COUNTERPARTS TO SMGS

4 THE RADIO AND MIPS COUNTERPARTS

5 IRAC COUNTERPARTS

6 ANALYSIS AND DISCUSSION
6.2 Blending of SMGs
6.3 Redshift distribution

7 CONCLUSIONS