Foregrounds for observations of the cosmological 21 cm line - II. Westerbork observations of the fields around 3C 196 and the North Celestial Pole
G. Bernardi, A. G. de Bruyn, G. Harker, M. A. Brentjens, B. Ciardi, V. Jelić, L. V. E. Koopmans, P. Labropoulos, A. Offringa, V. N. Pandey, J. Schaye, R. M. Thomas, S. Yatawatta and S. Zaroubi
