1. H. J. Stern: RCT 58 (1985) G 50
2. W. B. Wiegand: Ind. Rubber J. 60, 397, 423, 453 (1920)
3. W. B. Wiegand: Trans. Inst. Rubber Ind. 1, 141 (1925)
4. S. Wolff u. M.-J. Wang: Carbon Black Reinforcement of Elastomers in Carbon Black, Kap. 9, (Ed. J.-B. Donnet), Marcel Dekker, Inc., N. Y. (1993)
5. E. M. Dannenberg: RCT 59 (1986) 512