The SBASE protein domain library, release 2.0: a collection of annotated protein sequence segments. - Sándor Pongor; Vesna Skerl; Miklós Cserzo; Zsolt Hátsági; György J. Simon; Valeria Bevilacqua (Nucleic Acids Res., 1993)

Protein Motifs: Towards a Unified View on Databases. - Zsolt Hátsági; Vesna Skerl; Sándor Pongor (HICSS (5), 1994)