Helmut Gfrerer,
"On Directional Metric Subregularity and Second-Order Optimality Conditions for a Class of Nonsmooth Mathematical Programs"
, Serie NuMa Report, Nummer 2012-07, Eigenverlag, Linz, 8-2012
Original Titel:
On Directional Metric Subregularity and Second-Order Optimality Conditions for a Class of Nonsmooth Mathematical Programs