| Autori | Titlu | Publicatia | An aparitie |
| V. PREDA | ON CONSTRAINT QUALIFICATIONS IN MULTIOBJECTIVE OPTIMIZATION PROBLEMS: SEMIDIFFERENTIABLE CASE | J. OPTIM. TH. AND APPL./ 417 | 1999 |
| V. PREDA | OPTIMALITY CONDITIONS AND DUALITY FOR PROGRAMMING PROBLEMS INVOLVING SET AND N-N-SET FUNCTIONS | J. OF STAT. AND MANAGEMENT SYSTEMS/ 7 | 2000 |