OrthoGUI: graphical presentation of Orthostrapper results. - Volker Hollich; Christian E. V. Storm; Erik L. L. Sonnhammer (Bioinform., 2002)

The Pfam protein families database. - Alex Bateman; Lachlan James M. Coin; Richard Durbin; Robert D. Finn; Volker Hollich; Sam Griffiths-Jones; Ajay Khanna; Mhairi Marshall; Simon Moxon; Erik L. L. Sonnhammer; David J. Studholme; Corin Yeats; et al. (Nucleic Acids Res., 2004)

Scoredist: A simple and robust protein sequence distance estimator. - Erik L. L. Sonnhammer; Volker Hollich (BMC Bioinform., 2005)

Pfam: clans, web tools and services. - Robert D. Finn; Jaina Mistry; Benjamin Schuster-Böckler; Sam Griffiths-Jones; Volker Hollich; Timo Lassmann; Simon Moxon; Mhairi Marshall; Ajay Khanna; Richard Durbin; Sean R. Eddy; Erik L. L. Sonnhammer; et al. (Nucleic Acids Res., 2006)

PfamAlyzer: domain-centric homology search. - Volker Hollich; Erik L. L. Sonnhammer (Bioinform., 2007)