International Conference on Padé Approximants, Continued Fractions and Related Topics
University of Colorado, Boulder, USA
21-14 June 1972

From left to right:
1st row:
?, ?, Wheeler, Zinn-Justin, Wuytack, Crater, Duke, Fisher, Chisholm, Conte, Gragg, Peter Wynn, Scofield, Lange, Reid, Graffi.
2nd row:
Callas, Todd, Hillam, Jan Wynn, ?, Kaufman, Van Tuyl, ?, Nuttall, ?, Masson, Blanch, Thron, Meyer, Shafer, Arne Magnus, Turchetti, Barnsley, Roach, Wetzel.
3rd row:
Bessis, Donoghue, Poreda, Field, Phipps ?, Gustafson, Hayden, Saul Dronies, Fair, Stecok, Baker, Gammel, Van Ausdall, Snell, Brezinski, Wyss ?, Waadeland, ?, Golub, W.B. Jones, John Gill.

1975, France
From left to right: Peter Wynn, Claude Brezinski.
©Claude Brezinski