Snelders, H. A. M. (1971). „J. S. C. Schweigger: His Romanticism and His Crystal Electrical Theory of Matter”. Isis. 62 (3): 328. JSTOR229946. doi:10.1086/350763.
Snelders, H. A. M. (1971). „J. S. C. Schweigger: His Romanticism and His Crystal Electrical Theory of Matter”. Isis. 62 (3): 328. JSTOR229946. doi:10.1086/350763.
O'Connor J J; Robertson E F. „Michael Faraday”. School of Mathematics and Statistics, University of St Andrews, Scotland. Архивирано из оригинала 20. 02. 2010. г. Приступљено 8. 5. 2010.
O'Connor J J; Robertson E F. „Michael Faraday”. School of Mathematics and Statistics, University of St Andrews, Scotland. Архивирано из оригинала 20. 02. 2010. г. Приступљено 8. 5. 2010.