GEMPP, Thomas. Levitronix GmbH: Centrifugal Pump without Bearings or Seals. CHIMIA, [S. l.], v. 57, n. 6, p. 331, 2003. DOI: 10.2533/000942903777679163. Disponível em: https://www.chimia.ch/chimia/article/view/2003_331.. Acesso em: 23 nov. 2024.