Conversation: Richard Serra and Lynne Cooke http://www.icaphila.org/events/past/serra.php Part II: Habitat Groups, New York, Leo Castelli, and Petra en-us Copyright 2007, Institute of Contemporary Art, Philadelphia Conversation: Richard Serra and Lynne Cooke http://www.icaphila.org/events/past/serra.php Part II: Habitat Groups, New York, Leo Castelli, and Petra http://www.icaphila.org/rss/item-serra-2