REFERENCES
- Umbach , K. H. 1980 . Melliand Textilber. (Eng. Edn) , 61/9 : 747
- 1984 . DIN 54 101 TI(E) (Draft Standard), April
- Umbach , K. H. 1983 . ‘Proceedings of International Conference on Medical and Biophysical Aspects of Protective Clothing’ 226 Lyons .
- Mecheels , J. and Umbach , K. H. 1976 . Melliand Textilber. (Eng. Edn) , 57/5 : 1142 1977, 58/6, 76