1. Erdelyi, A., Magnus, W., Oberhettinger, F. and Tricomi, F. G. (EMO). 1954.Tables of Integral Transforms1New York: McGraw-Hill.
2. Johnson, W. B., Ludwig, F. L. and Moon, A. E. Development of a practical, multipurpose urban diffusion model for carbon monoxide. Proc. of Symp. on Multiple-Source Urban Diffusion Models. Edited by: Stern, A. C. Vol. AP-86, pp.5–1. 5–38. U. S. Environmental Protection Agency.