Papasimakis، N.؛ Fedotov، V. A.؛ Marinov، K.؛ Zheludev، N. I. (2009). "Gyrotropy of a metamolecule: wire on a torus". Physical Review Letters. ج. 103: 093901. arXiv:0810.3539. DOI:10.1103/PhysRevLett.103.093901.
Papasimakis، N.؛ Fedotov، V. A.؛ Savinov، V.؛ Raybould، T. A.؛ Zheludev، N. I. (2016). "Electromagnetic toroidal excitations in matter and free space". Nature Materials. ج. 15: 263–271. DOI:10.1038/nmat4563.
Afanasiev، G. N. (1990). "The electromagnetic field of solenoids with time-dependent currents". Journal of Physics A: Mathematical and General. ج. 23: 5755–5764. DOI:10.1088/0305-4470/23/24/017.
Radescu، E. E.؛ Vaman، G. (2002). "Exact calculation of the angular momentum loss, recoil force, and radiation intensity for an arbitrary source in terms of electric, magnetic, and toroid multipoles". Physical Review E. ج. 65 ع. 2: 046609. DOI:10.1103/PhysRevE.65.046609.
Papasimakis، N.؛ Fedotov، V. A.؛ Marinov، K.؛ Zheludev، N. I. (2009). "Gyrotropy of a metamolecule: wire on a torus". Physical Review Letters. ج. 103: 093901. arXiv:0810.3539. DOI:10.1103/PhysRevLett.103.093901.
Afanasiev، G. N.؛ Stepanovsky، Y. P. (1995). "The electromagnetic field of elementary time-dependent toroidal sources". Journal of Physics A: Mathematical and General. ج. 28: 4565–4580. DOI:10.1088/0305-4470/28/16/014.