Letters from Henri Lebesgue to Emile Borel. Epilogue by Bernard Bru and Pierre Dugac. (Lettres d’Henri Lebesgue à Émile Borel. Postface de Bernard Bru et Pierre Dugac.) (French) Zbl 0718.01025
Cah. Sémin. Hist. Math. 12, 1-512 (1991).
Reviewer: D.Laugwitz (Darmstadt)