Josef Schicho,
"A degree bound for the parameterization of a rational surface"
, in E.M. Friedlander , C.A. Weibel, in Journal of Pure and Applied Algebra, Vol. 145, Nummer 1, ELSEVIER SCIENCE BV, Seite(n) 91-105, 12-1999, ISSN: 0022-4049, J. Schicho. J. Pure Appl. Alg., 145:91-105, 1999
Original Titel:
A degree bound for the parameterization of a rational surface