1. Beaton, D. H. (1974). Continuous solid polymerization of polyamide. US Patent to DuPont, #3821171.
2. VLUGR2: A vectorizable adaptive-grid solver for PDE2 in 2D;Blom;ACM Transactions on Mathematical Software,1996
3. Chipman, G. R., & Bockrath, R. E. (1977). Solid state polymerization. US Patent to Amoco, #4008206.
4. Free and moving boundary problems;Crank,1984
5. Numerical methods for problems with moving fronts;Finlayson,1992