Helmut Gfrerer,
"Second-Order Necessary Conditions for Nonlinear Optimization Problems with Abstract Constraints: The Degenerate Case"
, in SIAM Journal on Optimization, Vol. 18, Seite(n) 589-612, 2007, ISSN: 1095-7189
Original Titel:
Second-Order Necessary Conditions for Nonlinear Optimization Problems with Abstract Constraints: The Degenerate Case