Henry F. Smyth, Charles P. Carpenter, Carrol S. Weil, Urbano C. Pozzani, Jean A. Striegel, Judith S. Nycum,
Range-Finding Toxicity Data: List VII American Industrial Hygiene Association Journal. ,vol. 30, pp. 470- 476 ,(1969) ,
10.1080/00028896909343157