The Swiss sausage recipes at the abzspiez website have been around a long time, but they keep reorganizing the site and the recipes, so links to them are largely broken. The recipes used to be grouped by type (e.g., rohwurst, etc.); now, they are in alphabetical order. Be aware that there is something funky about the website, and sometimes, only a few of the recipes that are available under a given letter show up. If you refresh the page, more or fewer may show.
Here is the current link to the ABZSpiez Swiss Sausage Recipes. The site translates fairly well using Google Translate.