Published in Contributions In Science (Los Angeles), in 2000, in volume 481, pages 1-21
Published in Contributions in Science, in 2000, in volume 482, pages 1-62
Published in Contributions in Science (Los Angeles), in 2000, in volume 483, pages 1-19
Published in Contributions In Science (Los Angeles), in 2000, in volume 484, pages 1-10