Beta has a series of dissertations. This series was initiated in 1997. All dissertations of Beta appear as part of this series and are published on this website.
Besides the dissertation series Beta also has a working paper series. Interim research results can be published in the Beta working paper series. Working papers that appeared in the current or last year are published online, working papers published earlier are archived and are available upon request via firstname.lastname@example.org. An overview of all the published working papers can be found here.