Pérès was professor of mathematics and physics at the University of Lyon , later attorney at law and finally a librarian in Agen . Pérès was professor of mathematics and physics at the University of Lyon , later a government attorney and finally librarian at Agen .
Prs adalah profesor matematik dan fizik di Universiti Lyon, kemudian peguam di undang-undang dan akhirnya pustakawan di Agen. Prs adalah profesor matematik dan fizik di Universiti Lyon, kemudian seorang peguam kerajaan dan akhirnya pustakawan di Agen.