We are grateful to the American Mathematical Society for providing a mirror of our project's web database. The mirror should update nightly, thus its data may be slightly older than that on the main NDSU server. However, any such differences should be resolved when the nightly update takes place.

We are also grateful to Universität Bielefeld and Instituto Nacional de Matemática Pura e Aplicada for mirror support previously provided. As the Project and the internet have matured, we have found mirrors to be less necessary and decided to simplify operations by reducing the number of mirrors in operation.