Luis A. Santalo ; with a foreword by Mark Kac. Luis A. Santaló ; [with a foreword by Mark Kac]. Julio R. Bastida ; with a foreword by Roger Lyndon. Andr鈋 C. Drainville ; with a foreword by Saskia Sassen. Thomas M. Masters ; with a foreword by Janice M. Lauer. Pierre Sagaut ;with a foreword by Massimo Germano. Pierre Sagaut ; with a foreword by Charles Meneveau. Henryk Minc ; with a foreword by Marvin Marcus. Laban P. Ayiro ; with a foreword by Richard K. Mibey. Phillip R. Robinson ; with a foreword by Philippe Kahn.