1. Occurrence and analysis of nitrosamines in air;Bretschneider,1976
2. Appendix I of the circular of 14 May 1985,1988
3. Exposition professionnelle aux nitrosamines volatiles dans l'industrie du caoutchouc en France;Ducos;Cah. Notes Document.,1986
4. N-Nitrosamines in the factory environment;Fajen,1980
5. Summary report on N-nitrosamines in the factory environment;Fajen,1982