6.1 6.1(1) 6.2 6.2(1) 6.3 6.4 6.5 6.5(1) 6.8 6.9 6.10 6.11 6.12 6.12(1) 6.15 6.16 6.17 6.18 6.19 6.22 6.23 6.24 6.25 6.26 6.29 6.30
