1. Gesetzblatt der DDR. I, S. 647, Sonderdruck, No. 9 (1958).
2. E. Padelt, Units of Pressure According to the Table of Legalized Measurement Units (Report of the Weights and Measures Administration of the GDR). Standardisierung, No. 11, p. 1/518 (1959).
3. E. Padelt, Mass-force, Density-Specific Gravity (Report of the Weights and Measures Administration of the GDR). Standardisierung, No. 12, p. 1/565 (1959).
4. E. Padelt, Instruction on the Adoption of Physico-Technical Measurement Units (Report of the Weights and Measures Administration of the GDR). Schiffbautechnik, No. 1, p. 41 (1959).
5. Adoption of Physico-Technical Measurement Units, Schiffbautechnik, No. 9, p. 481?482 (1959).