R. J. Duffin

1. Khintchine’s problem in metric Diophantine approximation
   1941/06/01 by R. J. Duffin, A. C. Schaeffer · 17 citations
   Mathematics · Physics and Astronomy · #Mathematical Dynamics and Fractals #Advanced Mathematical Theories and Applications #Mathematics and Applications
2. Impedance Synthesis without Use of Transformers
   1949/08/01 by R. Bott, R. J. Duffin · 4 citations
   Chemistry · #Electrochemical Analysis and Applications