TY - JOUR AU - Penn, David AU - Apell, S C2 - Physical Review Letters DA - 1983-04-25 00:04:00 LA - en M1 - 50 PB - Physical Review Letters PY - 1983 TI - Optical Properties of Small Metal Spheres: Surface Effects UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=620233 ER -