. ▁ 4 ): ▁The ▁Att ack ▁on ▁the ▁Soviet ▁Union . ▁New ▁York : ▁Oxford ▁University ▁Press , ▁ 1 9 9 8 . ▁Cont rib uting ▁authors : ▁Hor st ▁Bo og , ▁J ürgen ▁För ster , ▁Jo achim ▁Hoff mann , ▁Ernst ▁K link , ▁R olf - Di eter ▁Müller , ▁and ▁G erd ▁R . ▁U eb ersch är . ▁ ▁Germany ▁and ▁the ▁Second ▁World ▁War ▁( vol . ▁ 5 ▁– ▁part ▁ 1 ): ▁Organ ization ▁and ▁M obil ization ▁of ▁the ▁German ▁S phere ▁of ▁Power : ▁W art ime ▁Administration , ▁Econom y , ▁and ▁Man power ▁Resources , ▁ 1 9 3 9 - 1 9 4 1 . ▁New ▁York : ▁Oxford ▁University ▁Press , ▁ 2 0 0 0 . ▁Cont rib uting ▁authors : ▁Bern hard ▁R . ▁K ro ener , ▁R olf - Di eter ▁Müller , ▁and ▁Hans ▁Um bre it . ▁ ▁Germany ▁and ▁the ▁Second ▁World ▁War ▁( vol . ▁ 5 ▁– ▁part ▁ 2 ): ▁Organ ization ▁and ▁M obil ization ▁of ▁the ▁German ▁S phere ▁of ▁Power : ▁W art ime ▁Administration , ▁Econom y , ▁and ▁Man power ▁Resources , ▁ 1 9 4 2 - 1 9 4 4 / 5 . ▁New ▁York : ▁Oxford ▁University ▁Press , ▁ 2 0 0 3 . ▁Cont rib uting ▁authors : ▁Bern hard ▁R . ▁K ro ener , ▁R olf - Di eter ▁Müller , ▁and ▁Hans ▁Um