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_c197646 _d197646 |
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| 005 | 20221110111901.0 | ||
| 008 | 221110b ||||| |||| 00| 0 eng d | ||
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| 040 | _aLDD | ||
| 245 | _aAmerican Journal of Physics | ||
| 260 |
_aUSA _bAmerican Association of Physics Teachers _c2018 |
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| 300 | _a86(7-12) | ||
| 310 | _aMonthly | ||
| 650 | _aPhysics | ||
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