PT  - JOURNAL ARTICLE
ED  - , 
TI  - PRODUCTS AND MATERIALS
AID  - 10.1126/science.230.4722.198
DP  - 1985 Oct 11
TA  - Science
PG  - 198--198
VI  - 230
IP  - 4722
4099  - http://science.sciencemag.org/content/230/4722/198.short
4100  - http://science.sciencemag.org/content/230/4722/198.full
SO  - Science1985 Oct 11; 230