Greuel, G., Hiss, G., & Matzat, B. H. 1. (1999). Algorithmic algebra and number theory: Selected papers from a conference held at the University of Heidelberg in October 1997. Berlin ; New York: Springer.

Greuel, G.-M., G. Hiss, và B. Heinrich 1945- Matzat. Algorithmic Algebra and Number Theory: Selected Papers From a Conference Held At the University of Heidelberg in October 1997. Berlin ; New York: Springer, 1999.

Greuel, G.-M., G. Hiss, và B. Heinrich 1945- Matzat. Algorithmic Algebra and Number Theory: Selected Papers From a Conference Held At the University of Heidelberg in October 1997. Berlin ; New York: Springer, 1999.