THE OPTICAL CHARACTERISTICS OF SO-CALLED INVISIBLE BIFOCALS.
| Autor: | Knoll, Henry A. |
|---|---|
| Zdroj: | Optometry & Vision Science; Oct1962, Vol. 39 Issue 10, p538-542, 5p |
| Databáze: | Complementary Index |
| Externí odkaz: |
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| Autor: | Knoll, Henry A. |
|---|---|
| Zdroj: | Optometry & Vision Science; Oct1962, Vol. 39 Issue 10, p538-542, 5p |
| Databáze: | Complementary Index |
| Externí odkaz: |
|