| 000 | 00399nam a2200133Ia 4500 | ||
|---|---|---|---|
| 008 | 180516s9999 xx 000 0 und d | ||
| 041 | 1 | 0 |
_afre _b |
| 100 | _aAPPLIED SOLAR ENERGY | ||
| 245 | 1 | 0 | _aEFFICIENCY OF ABSORBING ELEMENT OF TUBULAR COLLECTOR WITH INSERTS-SAVINGS OF HEAT ENERGY IN A TRENCH GREENHOUSE |
| 260 | 1 | 0 |
_a _b _c1990 |
| 300 | 1 | 0 |
_a _b _c _e |
| 520 | 1 | 0 |
_a _b |
| 942 | 1 | 0 |
_c02 _t1923 _uVOL 26.N°4 _v |
| 994 | _a19230021 | ||
| 999 |
_c14510 _d14510 |
||