Identification of signal lights. II. Elimination of the purple category (Q78518341)
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scientific article published on 01 February 1959
Language | Label | Description | Also known as |
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English | Identification of signal lights. II. Elimination of the purple category |
scientific article published on 01 February 1959 |
Statements
Identification of signal lights. II. Elimination of the purple category (English)
1 February 1959