Quasar Lenses in the South: searches over the DES public footprint
  We have scanned 5000 deg$^{2}$ of Southern Sky to search for strongly lensed
quasars with five methods, all source-oriented, but based on different
assumptions and selection criteria. We analyse morphological searches based on
Gaia multiplet detection and chromatic offsets, fibre-spectroscopic
preselection, and X-ray and radio preselection. The performance and
complementarity of the methods are evaluated on a common sample of known lenses
in the Dark Energy Survey public DR1 footprint. We recovered in total 13 known
lenses, of which 8 quadruplets. The method that found the largest number of
known lenses is the one based on morphological and colour selection of objects
from the WISE and Gaia-DR2 Surveys. We finally present a list of high-grade
candidates from each method, to facilitate follow-up spectroscopic campaigns,
including two previously unknown quadruplets: WG210014.9-445206.4 and
WG021416.37-210535.3.
