The importance of wide-field foreground removal for 21 cm cosmology : a demonstration with early MWA epoch of reionization observationsPober, J. C.; Hazelton, B. J.; Beardsley, A. P.; Kudryavtseva, NadezhdaThe astrophysical journal2016 / art. 8, p. 1-13http://doi.org/10.3847/0004-637X/819/1/8