  Aims. We aim to contribute to the identification of unassociated gamma-ray
sources in the galactic plane in order to enlarge the currently known
population of gamma-ray binaries and related systems, such as radio emitting
X-ray binaries and microquasars. These objects are currently regarded as
excellent test beds for the understanding of high energy phenomena in stellar
systems. Methods. Potential targets of study are selected based on
cross-identification of the 3rd Fermi Large Area Telescope catalogue with
historical catalogues of luminous stars often found as optical counterparts in
known cases. Follow-up observations and analysis of multi-wavelength archival
data are later used to seek further proofs of association beyond the simple
positional agreement. Results. Current results enable us to present here the
case of the Fermi source 3FGL J0133.3+5930 where two peculiar objects have been
discovered inside its region of uncertainty. One of them is the star TYC
3683-985-1 (LS I +59 79) whose eclipsing binary nature is reported in this
work. The other one is the X-ray source SWIFT J0132.9+5932, that we found to be
a likely low-power Active Galactic Nucleus at z = 0:1143 \pm 0:0002. If this
second object is of blazar type, it could easily account for the observed
gamma-ray photon flux. However, this is not confirmed at present, thus
rendering still open the star system TYC 3683-985-1 as an alternative
counterpart candidate to the Fermi source.
