The Koli Calling community

The Koli Calling conference was first held in 2001 as a local conference in Finland. Since then it has grown into an international conference, yet has successfully maintained the community feeling that has always pervaded it. This bibliometric study examines the Koli Calling proceedings for the past 15 years to try to determine an empirical basis for this community. Which authors keep coming back to Koli, ensuring continuity, and how many papers have they contributed? What is the rate of entry of new authors, ensuring that the community is refreshed and reinvigorated? What is the extent of collaboration between authors, and indeed between countries? The community is found to have a solid core of continuing authors, but still to have room for the entry of new authors, either as co-authors with established community members or alone or with other new authors. The community of Koli authors is found to have a clear Finnish core and yet to be truly international, with strong collaboration both within and between countries. Finally, its pattern of author productivity fits well with Lotka's law, an accepted model of author distribution within a discipline.