References
- Doroshenko , N V . 1997 . ‘Analysis of the composition of dust and gas emissions in gas cutting metal scrap’ . Stal , : 74 – 76 . (7)
- Roshchupkin , N P . 1997 . ‘Equipment for local ventilation in welding operations’ . Bezopas Truda Promyshl , : 33 – 36 . (3)
- Doroshenko , N V . 1997 . ‘Problems of ecology in processing secondary ferrous metal’ . Metallurg , : 12 – 14 . (5)