Keller, Gerta, Howard Armstrong, Vicent Courtillot, David Harper, Michael Joachimski, Andrew Kerr, Norman MacLeod, William Napier, József Palfy, and Paul Wignall. 2012. “Volcanism, Impacts and Mass Extinctions (Long Version)”. London: The Geological Society. Referenced from www.geolsoc.org.uk: Volcanism, impacts and mass extinctions (Long Version).
Howard Armstrong
First name
Howard
Last name
Armstrong