(N − 1) [ACD13]. (σ, λ) [TR12]. (σ, λ) [TR12]. + [GTK10, NMLD13]. 0 [UD12]. 10 [AC11b]. 13 [WYGW12]. 15 [AC11b]. 17 [GZZ12]. 2 [CWT12, MH10, YDL10]. 20 [AC11b]. 3 [GPK12, YLL11]. 4 [GWJJ12]. 5 [YLL11]. 6 [Rab12, TSZQ12]. 8 [TN12]. [n] [uLhY11]. + [LCL10, LCWW10, RLA11, RRF11, YCGA10, ZWY10a]. +/0/− [TG12b]. − [HBL12, LCWW10, YCGA10, Yu12a, ZWY10b]. 0/+ [GTT10]. 0/+ [TN12]. 1 [KSK11, LGW12, LX11...