Source:
Scientific American [Sci Am] 1990 Mar; Vol. 262 (3), pp. 30, 32.Publisher: Scientific American Country of Publication: United States NLM ID: 0404400 Publication Model: Print Cited Medium:
Source:
Scientific American [Sci Am] 1981 Nov; Vol. 245 (5), pp. 72-80.Publisher: Scientific American Country of Publication: United States NLM ID: 0404400 Publication Model: Print Cited Medium: