K. R. Gehner

A necessary condition for the existence of a circuit of any specified length

K. R. Gehner, 1976, Networks.

Necessary and Sufficient Optimality Conditions for the Fritz John Problem with Linear Equality Constraints

K. R. Gehner, Kenneth R. Gehner, 1974 .

Characterization theorems for constrained approximation problems via optimization theory

K. R. Gehner, 1975 .