Completing block Hermitian matrices with maximal and minimal ranks and inertias. Tian, Yongge (2010) ELA. The Electronic Journal of Linear Algebra [electronic only]
Conditions for a totally positive completion in the case of a symmetrically placed cycle. Johnson, Charles R., Kroschel, Brenda K. (2011) ELA. The Electronic Journal of Linear Algebra [electronic only]
The Q -matrix completion problem. Dealba, Luz Maria, Hogben, Leslie, Sarma, Bhaba Kumar (2009) ELA. The Electronic Journal of Linear Algebra [electronic only]