May 01, 1962 article Open access DUALITY, HAAR PROGRAMS, AND FINITE SEQUENCE SPACES Proceedings of the National Academy of Sciences DOI: 10.1073/pnas.48.5.783 Full text (OA) OpenAlex Authors 0 Author list not loaded yet. Cited by 2 stored of 114 Search Sort Most cited Newest Oldest Patent citations Title Any typearticle review book-chapter conference-paper preprint dissertation book dataset other Any fieldAgricultural and Biological Sciences Arts and Humanities Biochemistry, Genetics and Molecular Biology Business, Management and Accounting Chemical Engineering Chemistry Computer Science Decision Sciences Dentistry Earth and Planetary Sciences Economics, Econometrics and Finance Energy Engineering Environmental Science Health Professions Immunology and Microbiology Materials Science Mathematics Medicine Neuroscience Nursing Pharmacology, Toxicology and Pharmaceutics Physics and Astronomy Psychology Social Sciences Veterinary Open access Data-driven conditional flexibility index 2026 Computers & Chemical Engineering article Engineering Process Optimization and Integration Open access 1 citations Robust energy system design via semi-infinite programming 2025 Optimization and Engineering article Engineering Integrated Energy Systems Optimization Open access 1 citations 2 results References 0