R. Aldrovandi, J.P. Beltrán Almeida and J.G. Pereira have u… Twetch · August 13, 2019 R. Aldrovandi, J.P. Beltrán Almeida and J.G. Pereira have used the terms "de Sitter special relativity" and "de Sitter relativity" starting from their 2007 paper "de Sitter special relativity".