nízkofrekvenční technika
| Field | Ind | Field content |
| leader | -----cz a22--------4500 | |
| 1 | ph123540 | |
| 3 | CZ PrNK | |
| 5 | 20180215042124.5 | |
| 8 | 000731|n|anznnbabn n a|a | |
| 40 | ## | $a ABA001 $b cze $d ABA001 |
| 72 | #7 | $a 621.3 $x Elektrotechnika $2 Konspekt $9 19 |
| 80 | $a 621.3.029.4 $2 MRF_2003 | |
| 150 | $a nízkofrekvenční technika $7 ph123540 | |
| 450 | $a technika nízkofrekvenční $0 o | |
| 450 | $a nízkofrekvenční elektronika $0 o | |
| 450 | $a elektronika nízkofrekvenční $0 o | |
| 550 | $w g $a elektrotechnika $7 ph114460 | |
| 750 | $a low-frequency technology $2 eczenas | |
| 906 | $a wu20041006 $b miry | |
| 906 | $a wu20071116 $b miry | |
| 906 | $a wu20141029 $b miry | |
| 998 | $a 000123540 |