Organizing committee, international committee

ORGANIZING

COMMITTEE

Chairman: R.J.J. ZIJLSTRA Secretary: T.G.M. KLEINPENNING C.T.J. ALKEMADE F.N. HOOGE F.M. KLAASSEN D. POLDER M.T. VLAARDINGERBROEK

INTERNATIONAL Germany: France: Belgium:

COMMITTEE

H. BITTEL J.-C. MARTIN R.J. VAN OVERSTRAETEN

Switzerland: M.J.O. STRUTT England : Canada:

K.M. VAN VLIET

H. SUTCLIFFE

U.S.A.:

A. VAN DER ZIEL