^Staff. Foot Forward, Lamont–Doherty Earth Observatory, March 31, 2009. Accessed February 24, 2011. "In 1968, 14-year-old Paul Olsen of suburban Livingston, N.J., and his friend Tony Lessa heard that dinosaur tracks had been found in a nearby quarry. They raced over on their bikes. 'I went ballistic,' Olsen recalls. Over the next few years, the boys uncovered and studied thousands of tracks and other fossils there, often working into the night. It opened the world of science to Olsen; he went on to become one of the nation’s leading paleontologists." نسخة محفوظة 04 مارس 2016 على موقع واي باك مشين.
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