\input zb-basic
\input zb-ioport
\iteman{io-port 70343474}
\itemau{Lee, Kyoung Jun; Lee, Jong Chul}
\itemti{Design of ubiquitous referral marketing: A business model and method}
\itemso{EC-Web, 102-111 (2006).}
\itemcc{}
\itemut{}
\itemli{doi:10.1007/11823865\_11}
\end