Müller, Karl-Hartmut; Sawatzki, Simon; Gauß, Roland; Gutfleisch, Oliver (2021), "Permanent Magnet Materials and Applications", in Coey, J. M. D.; Parkin, Stuart S.P. (eds.), Handbook of Magnetism and Magnetic Materials, Cham: Springer International Publishing, p.1391, doi:10.1007/978-3-030-63210-6_29, ISBN978-3-030-63210-6, S2CID244736617
Nave, Carl R. (2010). "Bar Magnet". Hyperphysics. Dept. of Physics and Astronomy, Georgia State Univ. Archived from the original on 2011-04-08. Retrieved 2011-04-10.
Nave, Carl R. "Bar Magnet". HyperPhysics. Georgia State University. Retrieved 2026-05-23.
Müller, Karl-Hartmut; Sawatzki, Simon; Gauß, Roland; Gutfleisch, Oliver (2021), "Permanent Magnet Materials and Applications", in Coey, J. M. D.; Parkin, Stuart S.P. (eds.), Handbook of Magnetism and Magnetic Materials, Cham: Springer International Publishing, p.1391, doi:10.1007/978-3-030-63210-6_29, ISBN978-3-030-63210-6, S2CID244736617
Nave, Carl R. (2010). "Bar Magnet". Hyperphysics. Dept. of Physics and Astronomy, Georgia State Univ. Archived from the original on 2011-04-08. Retrieved 2011-04-10.