Schmid, K.; Böhmer, G. (January 1987). "Reference master: A microcomputer-based storage and retrieval system for bibliographic references". International Journal of Bio-Medical Computing. 20 (1–2): 107–121. doi:10.1016/0020-7101(87)90019-5. ISSN0020-7101. PMID3549574.
van Gijn, J.; Overbeke, A. J. (1998-03-28). "[Reference manager: a personal database on literature for consultation and word processing]". Nederlands Tijdschrift voor Geneeskunde. 142 (13): 724–733. ISSN0028-2162. PMID9623148.
Matus, N.; Beutler, E. B. (June 1989). "REFERENCE UPDATE and REFERENCE MANAGER: personal computer programs for locating and managing references". BioTechniques. 7 (6): 636–639. ISSN0736-6205. PMID2698652.
Schmid, K.; Böhmer, G. (January 1987). "Reference master: A microcomputer-based storage and retrieval system for bibliographic references". International Journal of Bio-Medical Computing. 20 (1–2): 107–121. doi:10.1016/0020-7101(87)90019-5. ISSN0020-7101. PMID3549574.
van Gijn, J.; Overbeke, A. J. (1998-03-28). "[Reference manager: a personal database on literature for consultation and word processing]". Nederlands Tijdschrift voor Geneeskunde. 142 (13): 724–733. ISSN0028-2162. PMID9623148.
Matus, N.; Beutler, E. B. (June 1989). "REFERENCE UPDATE and REFERENCE MANAGER: personal computer programs for locating and managing references". BioTechniques. 7 (6): 636–639. ISSN0736-6205. PMID2698652.
Schmid, K.; Böhmer, G. (January 1987). "Reference master: A microcomputer-based storage and retrieval system for bibliographic references". International Journal of Bio-Medical Computing. 20 (1–2): 107–121. doi:10.1016/0020-7101(87)90019-5. ISSN0020-7101. PMID3549574.