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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Drs. Shih-Lung Shaw (<st1:PlaceType w:st="on">University</st1:PlaceType>
of <st1:PlaceName w:st="on">Tennessee</st1:PlaceName>) and Hongbo Yu (<st1:place
w:st="on"><st1:PlaceName w:st="on">Oklahoma</st1:PlaceName> <st1:PlaceType
 w:st="on">State</st1:PlaceType></st1:place>) have done some interesting work
that extends a linear referencing approach to events in temporal gis.  While
their application does use ESRI software, one should be able to extend the
concept of linear referencing on time paths to any spatial database that
supports linear referencing.<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Bruce A. Ralston <o:p></o:p></span></font></p>

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