On the independence of equations in three variables.

Tero Harju Dirk Nowotka On the independence of equations in three variables. 139-172 2003 307 Theor. Comput. Sci. 1 http://dx.doi.org/10.1016/S0304-3975(03)00098-7 db/journals/tcs/tcs307.html#HarjuN03