%0 Journal Article %A A. P. Karpova %A Yu. I. Sapronov %T Approximate calculation of amplitudes of cycles bifurcating in the presence of resonances %J Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹûternye nauki %D 2008 %P 12-22 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/VUU_2008_3_a1/ %G ru %F VUU_2008_3_a1