KUŹNICKI, LESZEK 735,023 PROCEEDINGS Proceedings of the International Conference The Discovery of Polonium and Radium - its Scientific and Philosophical Consequences, Benefits and Threats to Mankind, 17-20 September 1998 Warsaw Poland : centenary of polonium and radium discovery / Hon. Comm, deputy chairman Leszek Kufnicki, Joseph Rotblat ; [ed. by Leszek Kuźnicki] ; Polish Academy of Sciences. Warsaw : Centrum