M. Tanabe, R. Kelly, A. de Lahunta [...]
W. J. Hartley, W. F. Blakemore
Pablo E. Piñeyro, Eric R. Burrough, Marcelo Almeida [...]
A A Ramp, C Hall, J M Orian
J. P. Dubey, D. H. Schlafer, J. F. Urban [...]
P Dammann, G Hilken, B Hueber [...]
Judith D Easterbrook, J B Kaplan, G E Glass [...]
, Eric R. Burrough, Marcelo Almeida 
