TY - JOUR AU - Fernández-Rañada, Antonio PY - 1995 DO - 10.1016/0375-9601(95)00352-4 SN - 0375-9601 UR - https://hdl.handle.net/20.500.14352/58985 T2 - Physics Letters A AB - We consider electromagnetic knots, defined as standard classical electromagnetic waves in empty space, characterized by two integers n(m) and n(e), such that all the force lines are closed and any pair of magnetic (electric) lines are linked with... LA - eng M2 - 337 PB - Elsevier KW - Equations. TI - Electromagnetic Knots TY - journal article VL - 202 ER -