Gesetze: PostPersRG § 4; PostPersRG § 4 Abs. 3; PostPersRG § 4 Abs. 3 Satz 2; SUrlV § 13; SUrlV § 13 Abs. 1; SUrlV § 15 Abs. 2; SUrlV § 15; BetrVG § 99; VwGO § 80 Abs. 1; VwGO § 80 Abs. 1 S. 1; TzBfG § 14 Abs. 1; TzBfG § 14 Abs. 1 Satz 1; TzBfG § 14 Abs. 1 Satz 2; TzBfG § 14 Abs. 4; TzBfG § 23; TV Ratio § 2 Buchst. b); TV Ratio § 3; TV Ratio § 3 Abs. 1; TV Ratio § 3 Abs. 1 Satz 2; TV Ratio § 3 Abs. 4; TV Ratio § 3 Abs. 5; TV Ratio § 4; TV Ratio §§ 6 ff.; TV Ratio § 22 Abs. 3; ZPO § 256 Abs. 1