Boson Realization of the su(3)-Algebra. IV
  On the basis of the Schwinger boson representation for the Elliott model developed in (III), the Holstein-Primakoff representation for the su(3)-algebra is presented. The basic idea is the same as that adopted in (II), and as an example, the case of the lowest approximation is shown. 
C.Providencia (Univ. de Coimbra, Portugal), J.da Providencia (Univ. de   Coimbra, Portugal), Y.Tsue (Kochi Univ., Japan) and...