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@pascalkwanten This book is also related to Projective Relativity works by Fantappie, Arcidiacono, Kalitzin and a few others https://t.co/YayN2ooPaf
@pascalkwanten This book is also related to Projective Relativity works by Fantappie, Arcidiacono, Kalitzin and a few others https://t.co/YayN2ooPaf
de Sitter relativity....what s about? https://t.co/0AKXOgj36u