Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Yasuhiko Tsue and Constanca Providencia and Joao da Providencia,On the exact eigenstates and the ground states based on the boson realization for many-quark model with su(4) algebraic structure,Progress of theoretical physics = 理論物理学の進歩,0033068X,Kyoto : Publication Office,2009-10,122,4,911-926,https://cir.nii.ac.jp/crid/1520291854804023040,https://doi.org/10.1143/ptp.122.911