[1] http://www.au.kddi.com/ezfactory/tec/spec/wap_tag7.html - according to this page, localsrc value is either "icon number" or "symbol name". The latest emoji list page http://www.au.kddi.com/ezfactory/tec/spec/3.html contains list of "icon numbers", but does not contain "symbol names". "Symbol names" are included in older versions of the list - see http://web.archive.org/web/*/www.au.kddi.com/ezfactory/tec/spec/3.html. See also WML 2.0 |wml:localsrc|.
[2] 東北・みち情報, , https://web.archive.org/web/20021224034028/http://www.thr.mlit.go.jp/road/ez/index.html