1. (can be downloaded from the Internet site: http://www.ams.org/mcorn/1997-66-218/S0025-5718-97-00830-2/S0025-5718-97-00830-2.pdf )
2. Yukio Tsuruoka and Hiroshi Sekigawa, On searching for solutions of the Diophantine equation x
3 + y
3 + z
3 = n;Koyarna;Math. Comp,1997
3. On a certain nonary cubic form and related equations
4. (can be downloaded from the Internet site: http://euler.free.fr/docs/HLR93.pdf)
5. On solving the Diophantine equation x
3 + y
3 + z
3 = k on a vector processor;Heath-Brown;Math. Comp,1993