The Concept of Probability(Reprint) Proceedings of the Delphi Conference, October 1987, Delphi, Greece (Fundamental Theories of Physics) by E.I. Bitsakis, Efthymios Nicolaidis Paperback, 464 Pages, Published 2014 by Springer ISBN-13: 978-94-010-7023-2, ISBN: 94-010-7023-7