edited by G. Petzow and G. Effenberg

VCH c1988-

: group , v. 1 : us , v. 1 : gw , v. 2 : us , v. 2 : gw , v. 3 : us , v. 3 : gw , v. 4 : gw , v. 4 : us , v. 5 : us , v. 5 : gw , v. 6 : us , v. 6 : gw , v. 7 : us , v. 7 : gw , v. 8 : gw , v. 8 : us , v. 9 : gw , v. 9 : us , v. 10 : gw , v. 10 : us , v. 11 : gw , v. 11 : us , v. 12 : gw , v. 13 : gw , v. 14 : gw , v. 15 : gw , v. 16 : gw , v. 17 : gw , v. 18

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