December 01, 2001 article Open access Intentional Objects Ratio DOI: 10.1111/1467-9329.00168 Full text (OA) OpenAlex Authors 0 Author list not loaded yet. Cited by 2 stored of 59 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 Meinongianism 2025 Cambridge University Press eBooks book Psychology Philosophy and Theoretical Science 4 citations Why do numbers exist? A psychologist constructivist account 2024 Inquiry article Mathematics Cognitive and developmental aspects of mathematical skills Open access 1 citations 2 results References 0