الگو:DSB
"DSB". Dictionary of Scientific Biography. New York: Charles Scribner's Sons. 1970–1980. ISBN 978-0-684-10114-9. {{cite encyclopedia}}: Cite has empty unknown parameter: |coauthors= (help)
"DSB". Dictionary of Scientific Biography. New York: Charles Scribner's Sons. 1970–1980. ISBN 978-0-684-10114-9. {{cite encyclopedia}}: Cite has empty unknown parameter: |coauthors= (help)