RT Journal Article
SR Electronic
T1 Products & Materials
JF Science
JO Science
FD American Association for the Advancement of Science
SP 1127
OP 1127
DO 10.1126/science.245.4922.1127
VO 245
IS 4922
YR 1989
UL http://science.sciencemag.org/content/245/4922/1127.abstract
AB