| 000 | 00838 a2200265 4500 | ||
|---|---|---|---|
| 005 | 20250513010450.0 | ||
| 264 | 0 | _c19821012 | |
| 008 | 198210s 0 0 rus d | ||
| 022 | _a0016-9900 | ||
| 040 |
_aNLM _beng _cNLM |
||
| 100 | 1 | _aIvanova, N A | |
| 245 | 0 | 0 |
_a[Changes in the mental work capacity of pupils in the lower grades in the course of the school year]. _h[electronic resource] |
| 260 |
_bGigiena i sanitariia _cJun 1982 |
||
| 300 |
_a90-3 p. _bdigital |
||
| 500 | _aPublication Type: Comparative Study; Journal Article | ||
| 650 | 0 | 4 | _aChild |
| 650 | 0 | 4 | _aHigher Nervous Activity |
| 650 | 0 | 4 | _aHumans |
| 650 | 0 | 4 |
_aMental Processes _xphysiology |
| 650 | 0 | 4 | _aTime Factors |
| 650 | 0 | 4 | _aUkraine |
| 700 | 1 | _aZenchenko, G I | |
| 700 | 1 | _aFedulova, N A | |
| 773 | 0 |
_tGigiena i sanitariia _gno. 6 _gp. 90-3 |
|
| 999 |
_c7106213 _d7106213 |
||