1. Deducing Newton’s second law from relativity principles: A forgotten history

   • Olivier Darrigol

   OriginalPaper 13 June 2019 Pages: 1 - 43

   

2. The law of refraction and Kepler’s heuristics

   • Carlos Alberto Cardona Suárez
   • Juliana Gutiérrez Valderrama

   OriginalPaper Open access 31 August 2019 Pages: 45 - 75

   

3. Lebesgue’s criticism of Carl Neumann’s method in potential theory

   • Ivan Netuka

   OriginalPaper 09 July 2019 Pages: 77 - 108