Asymmetry of the PLANCK antenna beam shape and its manifestation in the CMB data L.-Y. Chiang, P. R. Christensen, H. E. Jørgensen, I. P. Naselsky, P. D. Naselsky, D. I. Novikov and I. D. Novikov A&A, 392 1 (2002) 369-376 Published online: 22 August 2002 DOI: 10.1051/0004-6361:20020796