Richards, W. G. Spin-orbit coupling in molecules / by W.G. Richards, H.P. Trivedi and D.L. Cooper - Oxford : Clarendon Press, 1981 - viv , 105 p. ; 24 cm. - The International series of monographs on chemistry . Includes bibliographical references and indexes ISBN: 0198556144 Subjects--Topical Terms: Molecular orbitals--MathematicsQuantum chemistry--Mathematics