Source:
Scientific American [Sci Am] 1997 Apr; Vol. 276 (4), pp. 82-7.Publisher: Scientific American Country of Publication: United States NLM ID: 0404400 Publication Model: Print Cited Medium:
Source:
Scientific American [Sci Am] 1990 Dec; Vol. 263 (6), pp. 144.Publisher: Scientific American Country of Publication: United States NLM ID: 0404400 Publication Model: Print Cited Medium: