| Author's List |
| title | creator | language | description | tableOfContents | contributor | subject | created |
| Catalan's Constant [Ramanujan's Formula] | Fee, Greg | en | Ramanujan's Formula | 1996-10-01 | |||
| Historical Introductions to the Symbolical Books of the Evangelical Lutheran Church | Bente, F. (Friedrich), 1858-1930 | en | Formula Concordiae -- Catechisms; Lutheran Church -- Catechisms | 2008-10-13 |