  According to the second Fermi LAT Catalog (2FGL), about one third of the
gamma-ray sources listed have no assigned counterparts at lower energies. Many
statistical methods have been developed to find proper counterparts for these
sources. We explore the sky area covered at low radio frequency by Westerbork
in the Southern Hemisphere (WISH) survey to search for blazar-like associations
among the unidentified gamma-ray sources listed in the 2FGL (UGSs). Searching
the WISH and NRAO VLA Sky Survey (NVSS) radio surveys within the positional
uncertainty regions of the 2FGL UGSs, we select as gamma-ray blazar candidates
the radio sources characterized by flat radio spectra between 352 MHz and 1400
MHz. We propose new gamma-ray blazar associations for eight UGSs and we also
discuss their spectral properties at low radio frequencies. We compare the
radio flux density distribution of the low radio frequency gamma-ray blazar
candidates with that of gamma-ray blazars associated with other methods. We
find significant differences between these distributions. Finally, we discuss
the results of this association method and its possible applicability to other
regions of the sky and future radio surveys.
