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<bibliography>

<biblioentry xreflabel="Hong1998a" id="Hong1998a">
   <authorgroup>
       <author><firstname>Lang</firstname><surname>Hong</surname></author>
       <author><firstname>Ningzhou</firstname><surname>Cui</surname></author>
       <author><firstname>Shan</firstname><surname>Cong</surname></author>
       <author><firstname>Devert</firstname><surname>Wicker</surname></author> 
   </authorgroup>
<citetitle pubwork="article">An interacting multipattern data association (IMPDA) tracking algorithm</citetitle>
   <citetitle pubwork="journal">Signal Processing</citetitle>

   <volumenum>71</volumenum> 

   <artpagenums>55&#x2013;77</artpagenums> 
   <pubdate>1998</pubdate>  

</biblioentry>
<biblioentry xreflabel="Wu2008d" id="Wu2008d">
   <authorgroup>
       <author><firstname>Lang</firstname><surname>Wu</surname></author> 
   </authorgroup>
<citetitle pubwork="article">An approximate method for nonlinear mixed&#45;effects models with nonignorably missing covariates</citetitle>
   <citetitle pubwork="journal">Statistics &#38;&#35;x0026; Probability Letters</citetitle>

   <volumenum>78</volumenum> 

   <artpagenums>384&#x2013;389</artpagenums> 
   <pubdate>2008</pubdate>  

</biblioentry>
<biblioentry xreflabel="Wu2007" id="Wu2007">
   <authorgroup>
       <author><firstname>Lang</firstname><surname>Wu</surname></author> 
   </authorgroup>
<citetitle pubwork="article">A computationally efficient method for nonlinear mixed&#45;effects models with nonignorable missing data in time&#45;varying covariates</citetitle>
   <citetitle pubwork="journal">Computational Statistics &#38;&#35;x0026; Data Analysis</citetitle>

   <volumenum>51</volumenum> 

   <artpagenums>2410&#x2013;2419</artpagenums> 
   <pubdate>2007</pubdate>  

</biblioentry>
</bibliography>
