George A. Elliott, Guihua Gong, Huaxin Lin, Cornel Pasnicu "Abelian ${\text{C}}^{\ast }$-subalgebras of ${\text{C}}^{\ast }$-algebras of real rank zero and inductive limit ${\text{C}}^{\ast }$-algebras," Duke Mathematical Journal, Duke Math. J. 85(3), 511-554, (December 1996)