1968/05/01 by Roger Penrose · 213 citations
Mathematics · Physics and Astronomy · #Black Holes and Theoretical Physics #Mathematical analysis #Mathematical physics #Mathematics #Minkowski space #Noncommutative and Quantum Gravity Theories #Particle physics theoretical and experimental studies #Pfaffian #Pure mathematics #Twistor space #Twistor theory
paper · doi:10.1007/bf00668831
published in International Journal of Theoretical Physics 1(1), 61-99 (Springer Science and Business Media LLC)
crossref issued 1968/05/01 · crossref published 1968/05/01 · crossref published-print 1968/05/01 · openalex publication_date 1968/05/01 · crossref created 2004/11/28 · crossref deposited 2019/04/05 · openalex created_date 2025/10/10 · crossref indexed 2026/06/24 · openalex updated_date 2026/07/29