Daniel Fischer Jakub Pas Leszek Rychlewski The PDB-Preview database: a repository of in-silico models of 'on-hold' PDB entries. 2482-2484 2004 20 Bioinformatics 15 http://dx.doi.org/10.1093/bioinformatics/bth262 db/journals/bioinformatics/bioinformatics20.html#FischerPR04