Linear mappings which preserve acyclicity properties of graphs and digraphs and applications to matrices. - Daniel Hershkowitz (Discret. Math., 1987)

On 2k-Twisted Graphs. - Daniel Hershkowitz; Hans Schneider (Eur. J. Comb., 1987)

Path Coverings of Graphs and Height Characteristics of Matrices. - Daniel Hershkowitz; Hans Schneider (J. Comb. Theory B, 1993)

On greene's theorem for digraphs. - Irith Ben-Arroyo Hartman; Fathi Saleh; Daniel Hershkowitz (J. Graph Theory, 1994)

Uniqueness of Sum Decompositions of Symmetric Matrices. - Daniel Hershkowitz (SIAM J. Matrix Anal. Appl., 1996)

Approximability by Weighted Norms of the Structured and VolumetricSingular Values of a Class of Nonnegative Matrices. - Daniel Hershkowitz; Wenchao Huang; Hans Schneider; Hans Weinberger (SIAM J. Matrix Anal. Appl., 1997)

The Recursive Inverse Eigenvalue Problem. - Marina Arav; Daniel Hershkowitz; Volker Mehrmann; Hans Schneider (SIAM J. Matrix Anal. Appl., 2000)