John Krom
Rees

Columbia


Harold
Jacoby

Columbia










Julius
Mac Leod

Ghent University (Chemistry Tree)


Leonard Salomon
Ornstein

Utrecht (Physics Tree)


Paul
Ehrenfest

Leiden (Physics Tree)


Marcel G.J.
Minnaert

Utrecht (Physics Tree)





Filippo
Fraternali

RUG
(Options)

Enrico M
Di Teodoro

University of Florence, Italy (Physics Tree)

Federico
Lelli

European Southern Observatory (ESO)

Filippo FraternaliX