Ivanov, Schmelcher 1998
Ivanov M.V., Schmelcher P. The ground state of the lithium atom in strong magnetic fields. // Phys. Rev. A, 1998, v.57, no.5, p.3793//3800.
Ivanov M.V., Schmelcher P. The ground state of the lithium atom in strong magnetic fields. // Phys. Rev. A, 1998, v.57, no.5, p.3793//3800.