1, Raman scattering from adsorbates on silver*1 A. Otto Surface Science Volume 92, Issue 1, 1 February 1980, Pages 145-152 http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TVX-46P3V8M-1B7&_user=2324792&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000056916&_version=1&_urlVersion=0&_userid=2324792&md5=151b701a1fe720c7ebe8f67d238eb4ab
2, Charge transfer between adsorbed cyanide and silver probed by sers J. Billmana and A. Ottoa Surface Science Volume 138, Issue 1, 1 March 1984, Pages 1-25 http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TVX-46T37V8-PP&_user=2324792&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000056916&_version=1&_urlVersion=0&_userid=2324792&md5=741bc1f0847ae39396967a402c7ea4f0
3, Surface-enhanced Raman scattering by citrate on colloidal silver O. Siiman, L. A. Bumm, R. Callaghan, C. G. Blatchford, M. Kerker J. Phys. Chem., 1983, 87 (6), pp 1014–1023 http://pubs.acs.org/action/doSearch?action=search&type=within&prevSearch=&target=&sortBy=&startPage=0&func=showSearch&result=true&pageSize=20&restrict=&displaySummary=&searchText=&title=Surface-enhanced+Raman+scattering+by+citrate+on+colloidal+silver&author=&abstract=&figure=&startYear=&startMonth=&endYear=&endMonth=&x=31&y=11