By McDonald, Megan, Madrid, Erwin
By Erwin, David, Picton, Bernard, Marine Conservation Society
By Brecher, Erwin, Gerrard, Mike
By Erwin, Phil
By Lausch, Erwin, Coburn, O.
By Lutzer, Erwin
By Brecher, Erwin
By Moser, Erwin
By Schulze, Ernst-Detlef, Beck, Erwin, Müller-Hohenstein, Klaus, Lawlor, David, Kirsten, Gudrun
By Ilibagiza, Immaculée, Erwin, Steve
By Kreyszig, Erwin
By Panofsky, Erwin, Molino, Jean, Joly, Henri
By McManus, Erwin
By James, Erwin
By Bronte, Charlotte, Erwin, Sherri Browning
By Erwin, Brechers
By Wickert, Erwin, Brownjohn, J.Maxwell
By Wickert, Erwin, Maxwell Brownjohn, J., Brownjohn, J.Maxwell
By Chemerinsky, Erwin
By Tragatsch, Erwin
By Panofsky, Erwin
By Piscator, Erwin, Rorison, H.
By Erwin, Celia
By Kreyszig, Erwin, Erwin Kreyszig