Zbigniew Nitecki
John Milnor
Morris W. Hirsch
Panos M. Pardalos
David Spring
Richard L. Bishop
Wolfgang Ebeling
Theodor Bröcker
Boju Jiang
Nicole Moulis
Colloque de topologie différentielle Dijon 1974.
Burak Ozbagci
Wold Iberkleid
John W. Morgan
Regional Conference on Relativity (1970 University of Pittsburgh)
Luis Alvarez-Gaumé