1. [3] M. J. Davey, K. A. Landman, M. J. McGuinness and H. N. Jin: Mathematical modeling of rice cooking and dissolution in beer production; AIChE Journal, Vol. 48, No. 8, pp. 1811-1826 (2002)
2. [5] J. Crank: Free and Moving Boundary Problems, Oxford University Press (1987)