Doctor-Doc is an open source tool to handle literature requests, especially ordering and managing interlibrary loan requests. The software is freely available for libraries and information centers, and can be implemented easily. This paper introduces the features of Doctor-Doc as well as its interface, which is multilingual. We demonstrate how to activate Doctor-Doc as an Open URL link resolver in scientific databases like Web of Science, ScienceDirect and PubMed. A link resolver button links to the full text. In case the full text from publisher is not available, Doctor-Doc creates a request with complete bibliographic data to the library. The technology offers statistics and an appropriate overview of all order requests, which are useful data for the acquisition policy
