− | * Overview of migration Barry Katz lecture to Houston Geological Society abstract https://www.hgs.org/civicrm/event/info?reset=1&id=1235 | + | * Overview of migration Barry Katz lecture to Houston Geological Society abstract Oct. 8, 2012 https://www.hgs.org/civicrm/event/info?reset=1&id=1235 |