FINNA, J. AIR SAMPLER TYPES ESz-K-F-2 ESz-Qu-F-2 Periodica Polytechnica Mechanical Engineering, [S. l.], v. 2, n. 4, p. 405–407, 1958. Disponível em: https://pp.bme.hu/me/article/view/6463. Acesso em: 7 may. 2024.