Hugo R.
Kruyt

Utrecht




Wilhelm Friedrich
Ostwald

Leipzig University


?




Johan Antony
Barrau

Utrecht (MathTree)


Dirk
Coster

RUG (Physics Tree)


Jan Albert
Prins

Delft University of Technology (Physics Tree)


Wilhelm
Schlenk

Vienna University, Berlin


Herman F.
Mark

Polytechnic University


Jan J.
Hermans

UNC Chapel Hill


C. L. Ferdinand
Lindemann

Universität München (Physics Tree)


Arnold Johannes Wilhelm
Sommerfeld

Universität München (Physics Tree)




Willem
Prins

Syracuse

Albert J.
Pennings

DSM, University of Groningen
(Options)

Dirk
Grijpma

University of Groningen, Twente University

Ferry P.W.
Melchels

Heriot-Watt University

Paul
Smith

ETH Zürich

Christian
Muller

Chalmers University of Technology

Anja
Palmans

ETH Zürich

Christoph
Weder

University of Fribourg

Albert PenningsX