There is a error in the pattern.
At row 47. Corrections in pink
Thank to JustMade

18.09.2011
error at rows 419-421-422. Corrections in pink
Thank to wenmo

01.03.2015
Error at row 213
k5, 11x(k2tog, ho, k2) k4,yo, k4
the italian pattern is correct
Thank to sophula

grazie a gomitoloni per la pazienza di testare tutto lo schema scritto