Sinkankas, John (2) Rampelotto, Pabulo H. (2) Jaeger, John Conrad (australian National University), Cook, Neville G. W. (university Of California, Zimmerman, Robert (imperial College (1) Kitai, Adrian (mcmaster University (1) Mitchell, James K. (university Of California, Soga, Kenichi (university Of California, O'sullivan, Catherine (imperial College London) (1)