1. K. Figge und J. Koch, n Vorbereitung.
2. C. L. Daniels, Acute Toxicity and Irritation Studies on Sample TM 180, Batch 63665, Hill Top Research Inc., Miamiville, Ohio, Rep. U-438 A, January 27, 1971.
3. C. L. Daniels, Acute Toxicity and Irritation Studies on Sample TM 181, Hill Top Research Inc., Miamiville, Ohio, Rep. VA-73, March 16, 1971.