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Letters
/
Article
Case for “real” UFO’s
JUN 01, 1970
Letters
/
Article
Electrons versus x rays
JUN 01, 1970
Letters
/
Article
Definition of physics
JUN 01, 1970
Letters
/
Article
Lunar contamination
MAY 01, 1970
Letters
/
Article
More on tachyons
MAY 01, 1970
Letters
/
Article
The ideal job
MAY 01, 1970
Letters
/
Article
A vote for Mansfield
MAY 01, 1970
Letters
/
Article
Correction
MAY 01, 1970
Letters
/
Article
Has science overwhelmed society?
APR 01, 1970
Letters
/
Article
Citing the literature
APR 01, 1970
Letters
/
Article
Tachyons
APR 01, 1970
Letters
/
Article
To amend refereeing
APR 01, 1970
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