Published in Contributions In Science (Los Angeles), in 1998, in volume 469, pages 1-10
Published in Contributions In Science (Los Angeles), in 1998, in volume 470, pages 1-63
Published in Contributions In Science (Los Angeles), in 1998, in volume 471, pages 1-13
Published in Contributions In Science (Los Angeles), in 1998, in volume 472, pages 1-17
Published in Contributions in Science (Los Angeles), in 1998, in volume 473, pages 1-43
Published in Contributions In Science (Los Angeles), in 1998, in volume 474, pages 1-27
Published in Contributions In Science (Los Angeles), in 1998, in volume 475, pages 1-32
Published in Contributions in Science (Los Angeles), in 1998, in volume 476, pages 1-79